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FED ER AL RESERVE BANK
O F NEW YORK
Circular No. 8494
January 12,1979

T R U T H IN LENDING
Questions on Disclosure of Annual Percentage Rate
T o A l l M e m b e r B a n k s, a n d O th e r s C o n cern ed ,
in th e S e c o n d F e d e r a l R e s e r v e D is tr ic t:

Following is the text of a statement issued by the Board of Governors of the Federal Reserve System:
The Federal Reserve Board today [January 2] invited public comment on a wide range o f questions bearing
on disclosure to borrowers o f the annual percentage rate (APR) required by the Truth in Lending law and its
implementing Regulation Z.
The APR expresses the cost to the consumer o f borrowing money and paying for purchases on credit.
The Board requested comment by March 5, 1979. After this comment has been analyzed the Board will
decide whether to publish for comment specific proposals for revision o f the A PR disclosure requirements o f
Regulation Z. The Board’s objectives are greater uniformity in methods used to calculate the APR and increased
simplicity in its determination, to enhance the ability o f consumers to shop for credit.
The Board noted that present rules permit numerous variations in methods for computing the APR and
said that these variations result in a lack o f uniformity that deprives consumers o f a standard measure for
comparing the cost o f credit from different lenders. The lack o f uniformity arises, the Board said, primarily from
the ways in which Regulation Z deals with two issues: (1) the degree o f precision required in calculating and
disclosing the annual percentage rate, and (2) the treatment o f irregularities in payment amounts and periods.
The Board’s statement said:
“ Resolution o f these issues may require a wide range o f regulatory actions, including amendment or
revocation o f various provisions o f the regulation, revocation and substitution o f Board interpretations, and
revisions o f . . . the Board’s Annual Percentage Rate Tables . . . .
“ This notice describes specific problems which the Board has identified in the present annual percentage
rate provisions and sets forth possible methods o f resolving those problems. The options presented for each
issue may not be mutually exclusive nor do they constitute the only remedies which the Board might
consider. After analysis o f the comments received on this matter, the Board will consider what courses o f
action, if any, merit further consideration and will propose for comment specific regulatory language to
implement those changes.”

Printed below is the text of the Board of Governors’ notice. Comments thereon should be submitted
by March 5, 1979, and may be sent to our Consumer Affairs Division.
PAUL A. VOLCKER,

President.
[6210-01-M]
FEDERAL RESERVE SYSTEM
[12 CFR Part 226]

[Reg. Z; Docket No. R-01951
TRUTH IN LENDING
Calculation and Disclosure o f Annual
Percentage Rates

AGENCY: Board of Governors of the
Federal Reserve System.
ACTION: Proposed revisions to Regu­
lation Z regarding methods of calcu­



lating and disclosing annual percent­
age rates.
SUMMARY: This notice solicits com­
ment on the requirements of Regula­
tion Z with regard to the degree of
precision and treatment of payment
schedule variations in the calculation
and disclosure of the annual percent­
age rate. The Board is reviewing the
existing provisions in order to ascer­
tain what changes, if any, may be nec­
essary to provide greater uniformity
and simplicity in the determination of
this credit term. This publication de­
scribes certain problems, together

with possible alternative
and invites comment on
other aspects of the annual
rate provisions. Specific
changes resulting from this
be proposed for comment
time.

solutions,
these and
percentage
regulatory
review will
at a later

DATE: Comments must be received on
or before March 5, 1979.
ADDRESS: Secretary, Board of G ov­
ernors of the Federal Reserve System,
Washington, D.C. 20551.

FOR
FURTHER
INFORMATION
CONTACT:
Dolores S. Smith, Section Chief, Di­
vision of Consumer Affairs, Board of
Governors of the Federal Reserve
System, Washington, D.C. 20551
(202-452-2412).
SUPPLEMENTARY INFORMATION:
The Truth in Lending Act requires the
Board to prescribe rules for determin­
ing and disclosing the annual percent­
age rate, as a measure of the cost of
credit for consumer credit transac­
tions. The present rules permit numer­
ous variations in the computation
methods. These variations result in a
lack of uniformity which deprives con­
sumers of a standard measure for com­
paring credit sources. Additionally,
these variations cause uncertainty for
creditors and difficulties in enforce­
ment.
The Board believes that the present
lack of uniformity arises primarily
from the ways in which Regulation Z
deals with two issues: (1) the degree of
precision required in calculating and
disclosing the annual percentage rate
and (2) the treatment of irregularities
in payment amounts and periods. The
first issue relates both to the number
of decimal places employed in compu­
tation and disclosure and to the limita­
tion of disclosure options to either an
exact or a rounded rate. The second
issue involves the manner in which the
creditor either takes specific account
of variations in the payment schedule
or, to the extent permitted, ignores
those variations in computing the
annual percentage rate.
Resolution of these issues may re­
quire a wide range of regulatory ac­
tions, including amendment or revoca­
tion of various provisions of the regu­
lation, revocation and substitution of
Board interpretations, and revisions of
Supplement I and Volume I of the
Board's Annual. Percentage Rate
Tables. In considering such extensive
changes, the Board wishes to encour­
age a thorough public discussion
which will address the likely impact of
those changes and the extent to which
commenters perceive the need for any
changes at all. This notice describes
specific problems which the Board has
identified in the present annual per­
centage rate provisions and sets forth
possible methods of resolving those
problems. The options presented for
each issue may not be mutually exclu­
sive, nor do they constitute the only
remedies which the Board might con­
sider. After analysis of the comments
received on this matter, the Board will
determine which courses of action, if
any. merit further consideration, and
will propose for comment specific reg­
ulatory language to implement those
changes.
The Board believes that all of the
options discussed below could be im­
plemented on the basis of its rulemak
ing authority under §§ 105 and 107 of
the Truth in Lending Act, but wel­
comes comment on this matter as well.



I. T o leran ce

The annual percentage rate for any
credit transaction may be disclosed,
under the existing rules, as an exact
figure or rounded to the nearest onequarter per cent. A number of meth­
ods for determining annual percentage
rates are authorized by the current
provisions of Regulation Z and various
Board and staff interpretations. How­
ever, creditors disclosing a rate be­
tween these ‘ Correct” rates could find
themselves in violation of the regula­
tion. For example, using one author­
ized computation procedure, a creditor
might obtain an annual percentage
rate of 9.13 per cent. Using another
permitted calculation technique for
the same transaction, the creditor
might determine the annual percent­
age rate to be 9.20 per cent. Disclosure
of either of these rates or a rounded
rate of 9.25 per cent would be permis­
sible but a creditor disclosing 9.23 per
cent wrould be in violation of the regu­
lation if 9.23 per cent was not deter­
mined by a specifically sanctioned
computation method.
Another shortcoming of the round­
ing option is that the degree of protec­
tion afforded creditors is not uniform,
since the margin of error diminishes
as the true annual percentage rate ap­
proaches the quarter per cent. For ex­
ample, an annual percentage rate of
9.12 per cent may be rounded down .12
percentage points to 9.00 per cent,
while a 9.01 annual percentage rate
may be rounded down only .01 per­
centage points.
Finally. w7here the exact annual per­
centage rate lies extremely close to
the midpoint of the one-quarter per
cent range, determining whether to
round up or down to the nearest quar­
ter of one per cent becomes an almost
impossible task. For example, where
the true annual percentage rate is
near 9 125 per cent, an error of less
than one thousandth of one per cent
could result in an understatement at
9.00 per cent or an overstatement at
9.25 per cent.
In order to facilitate compliance and
eliminate the inequities associated
with the current rounding option, the
Board is considering replacing this
provision with a rule providing a toler­
ance for minor variations in rate com­
putation methods and insignificant
errors in disclosed annual percentage
rates. In view of the complexities in­
volved in establishing a workable rule,
the Board requests comment on the
following questions:
1.
Should the tolerance be the same
for overstatements and understate­
ments, or should a greater tolerance
be permitted for overstatements?
One argument for allowing a greater
tolerance for overstatements is evi­
dence indicating the existence of cer­
tain technical difficulties involving the
production and use of rate charts and
tables. These difficulties tend to pro­
duce substantial overstatements.
2

2. How much tolerance should be al­
lowed? Should the tolerance pre­
scribed be stated as a fixed amount
(e.g., within one eighth of a percent­
age point from the true rate) or as a
variable amount (e.g., as a percentage
of the true rate)?
3. Should the same tolerance be pre­
scribed for both closed end and open
end credit transactions?
4. Should distinctions be made on
the basis of length of maturity, credit
amount, or other such factors? For ex­
ample, should the same tolerance pre­
scribed for a credit transaction of
$1,000 maturing in one year also be ap­
plicable to a $50,000 credit extension
with a maturity of thirty years?
5. Should distinctions be made be­
tween rates produced by charts and
tables and those generated by poten­
tially more accurate devices, such as
computers and calculators?
6. Howr should the occasional slight
differences between rates produced by
the United States Rule and those pro­
duced by the actuarial method be ac­
counted for in prescribing a tolerance?
Since application of the United
States Rule sometimes produces a
higher rate that the actuarial method
for a given amount of finance charge,
one alternative might be to measure
the degree of overstatement allowed
from the rate produced by the former
method and determine the degree of
permissible understatement based on
the latter method.
7. Should the tolerance prescribed
apply uniformly to all computation
methods or should different treatment
continue to be provided, as in the fol­
lowing cases:
(a) Charts and tables applicable to
specific ranges or brackets of balances
under § 226.5(c)(2)(iv) and
(b) The single add-on rate transac­
tion method under Board Interpreta
tion §226.502.
8. Is the constant ratio method of
rate computation authorized under
§ 226.5(e) still needed, or could this
provision be deleted?
9. Should use of Volume I of the
Board's Annual Percentage Rate
Tables be restricted to transactions for
which the annual percentage rate pro­
duced falls within the tolerance to be
prescribed?
10. Are there other factors that the
Board should consider in establishing
a rule allowing a tolerance in annual
percentage rate computations?
II. N um ber of D e c im a l P l \ces
Presently, neither the Act nor the
regulation provides definitive rules re­
garding the degree of precision re­
quired at various stages in the annual
percentage rate computations or for
disclosure purposes. Although such
guidelines are contained implicitly in
Supplement I to Regulation Z and in
various Public Information Letters,
the absence of specific requirements is
a source of confusion in both open end
and closed end credit.

The number of decimal places to
which
calculations
are
carried
throughout the rate computation
process drastically affects the accura­
cy of the disclosed annual percentage
rate. Certain practices, including trun­
cation or rounding of “ significant”
digits at interim steps in the calcula­
tion process, frequently result in sig­
nificant distortions in the disclosed
annual percentage rate. To eliminate
this problem, the Board is considering
adoption of a rule requiring disclosed
annual percentage rates for all credit
transactions to be rounded to two deci­
mal places. In arriving at such rates,
calculator and computer programs
would be expected to carry all availa­
ble digits throughout the calculations,
rounding only the final result to two
decimal places. Similarly, charts and
tables would be required to provide
listed factors that permit a determina­
tion of the annual percentage rate
rounded to two decimals.
In open end credit, periodic rates
used to compute the finance charge
are also required to be disclosed. In
this regard, the Board is considering
adopting a rule requiring disclosure of
the exact periodic rate applied.
III.

I g n o r in g I r r e g u l a r it ie s

Regulation Z currently contains
three “ minor irregularities” provi­
sions: § 226.5(d) and Board Interpreta­
tions §§ 226.503 and 226.505. These sec­
tions permit creditors to disregard cer­
tain variations in payment amounts
and payment periods for purposes of
determining the annual percentage
rate, the amount of the finance
charge, or both. That is, where the
first payment period differs from the
subsequent periods by no more than a
specified number of days or where any
one payment differs from the other
payments by no more than a specified
per cent, creditors have been permit­
ted to ignore such variations, treating
the odd period or amount as though it
were regular.
Use of the minor irregularities provi­
sions necessarily creates distortion in
the annual percentage rate and the fi­
nance charge disclosed insofar as they
allow that which is irregular to be
treated as regular. Although the provi­
sions were designed to minimize the
distortion by limiting their applicabil­
ity to differences within certain speci­
fied ranges, the variations produced
can be considerable. This distortion is
proportionately greater in short term
transactions. For example, using the
minor irregularities option, a variation
of 10 days in the length of the first
period in a transaction payable month­
ly will cause the annual percentage
rate for a six month transaction to
vary by approximately 10 per cent of
the true rate; a one year transaction,
approximately 5 per cent of the true
rate; a two year transaction, approxi­
mately 2'/2 per cent of the true rate; a
five year transaction, approximately 1
per cent of the true rate; and a thirty




year transaction, approximately V3 per
cent of the true rate.
The variability is increased by the
fact that creditors are free to take ad­
vantage of the provisions when it is to
their benefit to do so (e.g., treating
short periods as regular) and to disre­
gard them when it is advantageous to
take specific account of irregularities
(e.g., a long period). The variability is
further increased by the fact that, for
a given transaction, a lender has the
option of using the minor irregulari­
ties provisions for both the annual
percentage rate and the finance
charge, for one and not the other, or
for neither one.
The variation in rates and charges
thus obtained under the current minor
irregularities rules creates several
problems. First, it impairs comparabil­
ity of what are intended to be the two
most important items of credit infor­
mation to consumers, thus hampering
credit shopping. It also considerably
complicates administrative enforce­
ment, in that examiners attempting to
verify disclosed information must per­
form numerous calculations to see
whether any one of several permissible
approaches might yield the disclosed
annual percentage rate or finance
charge. Finally, due to their fairly
technical nature, these provisions are
often misunderstood.
In light of these considerations, the
Board would like to receive public
comment on the following options:
Option 1. Eliminate the current
minor irregularities provisions alto­
gether.
One argument in favor of this
option, aside from those noted above
with regard to the variety, of results
permitted, is that the need for these
provisions has been greatly reduced as
the sophistication and availability of
tools capable of producing exact rates
and charges have increased. The need
for the protection offered by these
provisions would be further reduced if
certain other options suggested in this
proposal are adopted. For example, if
a uniform method of dealing with ir­
regular periods is specified (see Sec­
tion IV below), the task of accounting
for the most common irregularity
w’ould be simplified. Allowance of a
specified tolerance in the annual per­
centage rate accuracy requirement
(see Section I above) could also mini­
mize the need for the current minor ir­
regularities provisions. If, for instance,
there are irregularities which are truly
so minor that ignoring them results in
an annual percentage rate close
enough to the true rate to fall within
the specified tolerance, a creditor
could continue to ignore those irregu­
larities without violating the regula­
tion.
An argument against Option 1 is
that the minor irregularities provi­
sions appear to be widely relied upon
by creditors. Their elimination would
put a greater burden on creditors to
take specific account of payment
3

schedule irregularities, even in those
cases w’here the irregularities are
caused by a desire to accommodate
customer preferences (e.g., scheduling
the first payment to coincide with a
payday).
Option 2 Revise the minor irregular­
ities provisions to permit only over­
statements of the annual percentage
rate and finance charge.
Within this option, several further
choices could be made, for example:
(a) Should the provisions apply to
both periods and payment amounts or
just to periods? Under the latter, for
example, the extra days in the period
from the transaction date to the first
payment could be ignored, but any
variation in payment amount would
have to be reflected.
(b) Should the provisions apply to
both the annual percentage rate and
the finance charge or to just one, for
example, the annual percentage rate
(so that irregularities could be disre­
garded for rate computation purposes,
but the exact dollar amount of finance
charge would have to be disclosed)? If
applicable to both the annual percent­
age rate and the finance charge,
should the creditor be required, for a
given transaction, to use the minor ir­
regularities provisions for both annual
percentage rate and finance charge if
it chooses to use it for either one?
(c) Should the “ degree” of irregular­
ity be limited in some way as in the
current provisions (e.g., for a transac­
tion payable monthly, allow a period
of not more than 50 days to be treated
as if it were regular)?
Since one of the problems with the
current provisions is the variety of
rates and charges they permit to be
disclosed, this option would have the
advantage of decreasing the number of
permissible disclosures. In addition,
customers would never be told that
the rate or charge was lower than it
actually was. Moreover, since creditors
would be making disclosures that
might put them at a competitive disad­
vantage (because they would be dis­
closing an annual percentage rate or
finance charge higher than that actu­
ally imposed), use of the provision
would be discouraged in competitive
markets.
A major argument against this
option is that such a provision would
continue to allow inaccurate state­
ments of the annual percentage rate
and finance charge, thus impeding
comparison shopping.
Option 3 Leave the substance of the
current minor irregularities provisions
unchanged, making only editorial revi­
sions.
The provisions presently appear in
three separate places in the regulation
and Board interpretations. At a mini­
mum, the rules could be restated more
clearly in a single location.
Option 4 Adopt a new provision to
allow slight payment schedule vari­
ations arising from particular prac­

tices to be disregarded in determining
and disclosing the annual percentage
rate, finance charge and schedule of
payments.
There are a number of very slight
payment schedule irregularities which
arise from valid (even necessary) busi­
ness practices, and which affect, how­
ever negligibly, the amount of certain
required disclosures. One such irregu­
larity is the difference between the
final payment and all other payments
in a simple interest loan, which differ­
ence results from the rounding of pay­
ment amounts to whole cents. This
slight irregularity in the payment
schedule is unavoidable, since credi­
tors cannot collect fractions of pen­
nies. Under the current regulation,
however, a technical violation could
result unless the precise amount of
that final payment were computed
and disclosed, and the finance charge
adjusted accordingly.
Another example arises in certain
transactions in which interest is paid
on the outstanding balance and pay­
ments are made by payroll deduction.
Although paydays may be scheduled,
for example, on the 15th and the last
day of the month, the employer may
have a policy of advancing the payday
if one of those dates falls on a Satur­
day, Sunday or holiday. The payment
schedule would have occasional slight
variations due to this practice as well
as to the fact that the last day of the
month varies. Under the current regu­
lation. the creditor could not assume a
uniform semi-monthly payment sched­
ule, but would have to take account of
the advanced payment dates.
The impact of such slight variations
on tlip annual percentage rate may be
small enough to allow such variations
to be disregarded without causing the
rate to fall outside the annual percent­
age rate tolerances discussed in Sec­
tion I above. However, there are other
non-rate disclosures, e.g., finance
charge and total of payments, that are
also affected by these variations.
Option 4 would permit such variations
to be ignored for disclosure purposes.
The Board would like public com­
ment on Whether such a provision
would be appropriate and, if so,
whether there are other similar prac­
tices resulting in slight payment
schedule variations which should
properly be included in the provision.
IV .

A c c o u n t in g

for

I r r e g u l a r it ie s

An irregularity occurs when an in­
terval between advances or payments
in a transaction is shorter or longer
than the unit-period for that transac­
tion. A unit-period is that time inter­
val between advances or payments
which occurs most frequently in the
transaction. In the most common case,
an odd first period is created when a
transaction is consummated on a date




which does not fall exactly one unitperiod prior to the first payment or
advance date. In cases where the
minor irregularities provisions do not
apply, or where the creditor chooses to
account for these irregularities, the
creditor must determine the number
of days in the odd period and relate
that number to a regular period.
Since no single method has ever
been specified for making this calcula­
tion, creditors use a variety of meth­
ods. Among the methods commonly
used by creditors to determine the
length of an odd period are counting
the actual number of days, counting
on the basis of an assumed 30-day
month and counting months and days
in the period. The possible variations
thus produced are further compound­
ed by the creditor’s choice of options
in determining the fractional value of
the odd days, which may be related
either to 30 (assuming a standard
month of 30 days) or to 365/12 (divid­
ing the number of days per year by
the number of months). These seem­
ingly minor differences in accounting
for odd days may produce significant
variations in the resulting annual per­
centage rates.
The Board is considering the revi­
sion of Supplement I to specify a uni­
form method for determining the
number of odd days and relating that
number to a regular unit-period. In
transactions involving a unit-period of
a month, one suggested method is first
to determine the number of whole
months in the odd period by working
back from the calendar date of an ad­
vance or payment to the correspond­
ing calendar date in the previous
month, and then to count forward the
exact number of days from the begin­
ning of the odd period to the first cal­
endar date corresponding to the date
of the payment or advance, as applica­
ble. For example, in a transaction con­
summated on January 5 with the first
monthly payment due on February 23,
the creditor wTould count back from
February 23 to January 23 as one full
unit-period, and then count forward
from January 5 through January 23,
thus determining that there are 18
odd days in the first period. If this ap­
proach were adopted, Supplement I
would also specify uniform rules for
transactions involving other unit-peri­
ods.
Although this issue might assume
greater importance if the minor irreg­
ularities provisions discussed above
were revoked, it should be emphasized
that retention of those provisions
would not eliminate this issue. Odd pe­
riods must continue to be accounted
for in those transactions in which the
minor irregularities option is not
chosen, or in which the number of odd
days is beyond the ranges now permit­
ted to be ignored.

4

V. R

e l ia n c e on

C harts

and

T ables

Under § 226.5(c)(3), an annual per­
centage rate or finance charge error
that results from an error in the chart
or table used by the creditor does not
constitute a violation of Regulation Z,
subject to certain conditions. Two
issues have arisen regarding this provi­
sion. First, calculators and computer
software are now used extensively for
computation purposes, in substitution
for charts and tables. However, as
written, § 226.5(c)(3) appears to be
available solely to users of charts and
tables. Second, the Board’s statutory
authority for implementing this sec­
tion, which protects creditors against
civil liability under § 130 of the Truth
in Lending Act, has been questioned.
The Board is considering the follow­
ing alternative courses of action to re­
solve these issues:
Option
1 Rescind
§ 226.5(c)(3),
making creditors using any computa­
tion tool equally liable for finance
charge and annual percentage rate
errors, without regard to the source of
those errors.
Advances over the past ten years in
calculator technology and chart pro­
duction may warrant elimination of
§226.5(0(3). This option would also
accomodate, in the simplest and most
direct fashion, the concerns expressed
regarding both the unequal availabil­
ity of the protection afforded by the
present rule and the Board's authority
to promulgate it.
Option 2 Amend § 226.5(c)(3) to
extend its protection to any creditor
using fauity software or a faulty calcu­
lator acquired or produced in good
faith.
If this option is pursued, the Board
may consider conditioning the avail­
ability of this protection on certain re­
quirements. such as the maintenance
of procedures reasonably adapted to
detect or avoid errors and the adjust­
ment of customers' accounts to correct
such errors.
To aid in the consideration of these
matters by the Board, interested per­
sons are invited to submit relevant
data, views, comments or arguments.
Any such material should be submit­
ted in writing to the Secretary, Board
of Governors of the Federal Reserve
System, Washington, D.C. 20551, to be
received no later than March 5, 1979,
and should include the docket number
R-0195. The material submitted will
be made available for public inspection
and copying, except as provided in
§ 261.6(a) of the Board's Rules Regard­
ing Availability of Information (12
C.F.R. 261.6(a)).
By order of the Board of Governors,
December 22, 1978.
T h eo d o re E. A l l i s o n ,

Secretary o f the Board.
[FR Doc. 79 345 Filed 1-2-79; 8:45 am]