Work backwards from a tax-inclusive total at the Mississippi rate
÷ 1.07
Divide a Mississippi total by this to remove 7% sales tax
How to back out 7% sales tax in Mississippi
If you know a total that already includes Mississippi sales tax and you need the sale figure
underneath it, divide — do not subtract. The state rate in Mississippi is 7%,
so the divisor is 1.07.
Pre-tax price = Total ÷ 1.07 Sales tax = Total − Pre-tax price
This is the number most state returns actually ask for. Your card reader and your cash box
both hand you a blended figure; the return wants sales and tax apart.
A worked example at the Mississippi rate
A $100.00 total at 7% breaks down as $93.46 in sales
and $6.54 in tax.
Across a show, $2,150.00 taken at that rate is $2,009.35
of sales with $140.65 of tax inside it.
The mistake that costs you money
Taking 7% off the total instead of dividing gives $150.50 of "tax" on that
$2,150.00 day — against the correct $140.65. The gap is $9.85, and it runs the wrong way:
you would under-report your sales and over-report the tax you collected.
The reason is simple. The 7% was applied to the smaller pre-tax figure, not to the total,
so a percentage of the total is always too big.
When Mississippi vendors need this
Round, tax-inclusive pricing — $20 rather than $18.52 plus tax,
which speeds up every market transaction but buries the tax.
Filing a Mississippi return, which asks for gross sales separately from tax.
Reconciling a card deposit, which arrives as sales minus fees but still
containing the tax.
Checking a receipt against the rate that should have applied.
Local rates apply on top of the state rate in much of the country. If your venue's combined
rate is higher than 7%, divide by 1 plus that combined rate instead — the method does not
change. To go the other way, from price to tax, use the
Mississippi sales tax calculator.
How do I calculate reverse sales tax in Mississippi?
Divide the tax-inclusive total by 1.07. A $100.00 total becomes $93.46 in sales and $6.54 in tax at the 7% state rate.
How do I back out Mississippi sales tax from my day's takings?
Same division. $2,150.00 taken at 7% is $2,009.35 of sales with $140.65 of tax inside it.
Why can't I just subtract 7% from the total?
Because the rate applied to the pre-tax price, not the total. Subtracting 7% from $2,150.00 gives $150.50 of tax instead of the correct $140.65 — you would under-report sales and over-report tax.
What if local sales tax applies on top?
Use the combined rate. If the venue's total rate is higher than the 7% state rate, divide by 1 plus that combined figure. The method is identical.
What is the sales tax rate in Mississippi?
The base state rate is 7%. Counties and cities may add their own on top in much of the country, so check the combined rate at the venue.