When a business bills a customer for many small taxable sales in one period, does it compute sales tax on each sale or on the billing total?

Plain-English summary

Rochester Credit Center, Inc. sells credit reports to its clients. During a one-month billing period it sells many reports to each client, logging the date, the individual checked, the amount charged, and the tax for each check. Its Atlanta affiliate had been computing the sales tax on each individual credit check — figuring the state and local percentages report by report, then combining and rounding up. The company asked whether it should collect tax per report or on total taxable sales.

The Department held it must compute the tax on the billing total, not per report.

• § 1132(b) requires the Tax Commission to prescribe a method or schedule for the amounts collected from customers so as to eliminate fractions of a cent and so that a collector's aggregate collections equal, as far as practicable, the statutory percentage (state tax plus any local tax under Article 29) of total receipts.
• Applying that rule, Rochester Credit Center may not impute the tax on each individual credit check. Instead, at the end of the billing cycle, it must compute the sales tax once on the aggregate total of the charges for all the individual credit checks in that billing.

What this means for you

Tax the invoice total, not each line

If you bill a customer for many small taxable transactions in one period, the correct way to figure New York sales tax is to add up the taxable charges and apply the rate once to that total. Calculating tax on each tiny line and then summing can produce a different (usually higher) figure because of repeated rounding — and § 1132(b) is designed to keep aggregate collections in line with the true statutory percentage.

Why per-item rounding is a problem

New York's tax-collection schedules round to whole cents. Round up on every one of hundreds of small charges and the customer ends up over-charged relative to the statutory rate. Computing the tax once on the period total avoids that stacking of rounding errors.

Applies to any high-volume, small-ticket biller

The principle isn't limited to credit reports. Any vendor that issues periodic invoices covering numerous small taxable sales — data lookups, per-use service charges, and the like — should compute the tax on the aggregate taxable amount of the invoice.

Common questions

Q: Do I calculate sales tax on each small sale or on the invoice total?
A: On the invoice total. Compute the tax once on the aggregate of the taxable charges for the billing period, under § 1132(b).

Q: Why does it matter?
A: Computing and rounding tax on each item separately can overstate the tax because of repeated rounding. § 1132(b) is meant to keep aggregate collections equal, as far as practicable, to the statutory percentage of total receipts.

Q: Does this apply beyond credit reports?
A: The same aggregate-computation principle applies to any vendor billing many small taxable charges in one period.

Citations and references

Statutes and regulations:

• Tax Law § 1132(b) — the tax collected is computed by a method or schedule so that aggregate collections equal, as far as practicable, the statutory percentage of total receipts, eliminating fractions of a cent

Source

• Landing page: https://www.tax.ny.gov/pubs_and_bulls/advisory_opinions/sales_ao_1990.htm
• Opinion: https://www.tax.ny.gov/pdf/advisory_opinions/sales/a90_37s.pdf

Original ruling text

New York State Department of Taxation and Finance
TSB-A-90(37)S
Sales Tax
July 24, 1990

Taxpayer Services Division
Technical Services Bureau

STATE OF NEW YORK
COMMISSIONER OF TAXATION AND FINANCE
ADVISORY OPINION

PETITION NO. S900417D

On April 17, 1990 a Petition for Advisory Opinion was received from Rochester Credit
Center, Inc., 19 Picnic Street, Rochester, New York 14607.
The issue raised by Petitioner, Rochester Credit Center, Inc., is whether it should collect sales
tax on the sale of credit reports on a per unit basis or on total taxable sales.
When Petitioner sells a credit report to a client, sales tax is imputed. During a one month
billing period, Petitioner sells numerous credit reports to each client. All billing is completed by
Petitioner's affiliate in Atlanta, Georgia and forwarded to Petitioner for disbursement to its clients.
Petitioner's affiliate computes State sales tax on a per unit basis computing the specific percentages
for localities and the State individually and then combines and rounds up the amount due.
Each time one of Petitioner's clients request a credit check on a potential customer, it enters
into its computer the date, time, individual checked, amount charged, sales tax and the total amount.
These detailed figures are stored in the computer until the end of the billing period. At that time,
Petitioner prints out the entire list for its clients along with a billing page.
Section 1132(b) of the Tax Law provides the following:
"The tax commission shall by regulation provide a method or
methods or a schedule or schedules of the amounts to be collected
from customers in respect to any receipt ... upon which a tax is
imposed by this article so as to eliminate any fractions of one cent and
so that the aggregate collections of taxes by a person required to
collect it shall, as far as practicable, equal four percent of total
receipts ... where a similar tax is imposed under the authority of
article twenty-nine of this chapter, equal four percent plus the rate of
tax imposed under the authority of article twenty-nine of the total
receipts ..." (Emphasis supplied)
Petitioner may not impute the tax on each individual credit check. Rather, at the end of the
billing cycle, Petitioner must compute the sales tax once on the aggregate total of the charges for all
the individual credit checks contained in the billing in accordance with section 1132(b) of the Tax
Law.

DATED: July 24, 1990

s/PAUL B. COBURN
Deputy Director
Taxpayer Services Division

NOTE: The opinions expressed in Advisory Opinions
are limited to the facts set forth therein.