Spreadsheet Studio

Rep commission model

A commission model for a medical device distributorship: earned on the case date rather than the invoice date, by rep and by product line, with tiered accelerators, splits and clawbacks — and the cash each case turns into, on the paying hospital's own clock.

Built for Kestrel Ridge Surgical Partners, an illustrative medical device distributorship. The data is invented; the mechanics are not.

Download the workbook

.xlsx · 8 sheets · 939 live formulas
323 inputs · 11 tie-outs · no macros

What the file finds

Three numbers the shortcut version never produces

$14,455
Commission liability missing at 31 March

Accrual!E20 · =E18-E19

Cases already performed and not yet invoiced. An invoice-basis book does not carry it.

$93,500
Worst month the blended DSO gets wrong

Cash!A24 · =MAX(C18:H18)

$7,939
Commission on cases still not invoiced

Accrual!I15 · =SUMIFS(Commission!$L$6:$L$35,Commission!$N$…

The mistake this model exists to catch

Commission accrued on the invoice date instead of the case date. Cases done in March and invoiced in May are a liability at 31 March, and an invoice-basis book does not carry them.

The mistake this model exists to catch

One blended DSO across every hospital, when one system pays in 45 days and another in 110. The mix, not the average, decides whether payroll is comfortable in March.

What you send

An export, and the rules of the business

  • The case log: one row per case, with the rep, hospital, product line, case date and invoice date
  • The commission plan: rates by product line, the accelerator threshold, the split and clawback rules
  • How each hospital system actually pays, measured from the remittance history

Messy is fine. The paste grid on the right is what the export becomes: one row per case, every cell yellow because every cell is yours.

What comes back

  • READMEread me first
  • Inputs23 inputs
  • Cases3 formulas
  • Commission455 formulas
  • Accrual105 formulas
  • Cash92 formulas
  • Collect272 formulas
  • Checks12 formulas

What you send: the case log, one row per case

The paste grid. Twelve of the thirty cases shown.

Cases sheet: the paste grid the client's export becomes
Case IDCase dateRepHealth systemProduct lineInvoice dateNet revenueProduct costSharedCredited
KR-100101/06/2026D. MarchettiAlderwood Regional Medical CenterSpine01/14/2026$38,400$23,800NN
KR-100201/08/2026R. OkaforMeridian Valley Health SystemSpine02/11/2026$52,600$33,100NN
KR-100301/13/2026T. LindqvistFenmore County Hospital DistrictExtremities01/29/2026$14,200$8,900NN
KR-100401/19/2026D. MarchettiKingsbridge Orthopedic InstituteBiologics02/02/2026$6,800$4,300NN
KR-100501/22/2026R. OkaforAlderwood Regional Medical CenterSpine01/30/2026$41,900$26,100YN
KR-100601/27/2026T. LindqvistMeridian Valley Health SystemExtremities02/19/2026$18,700$11,600NN
KR-100702/03/2026D. MarchettiFenmore County Hospital DistrictSpine02/24/2026$47,300$29,400NN
KR-100802/05/2026R. OkaforMeridian Valley Health SystemSpine03/16/2026$61,200$38,200NN
KR-100902/11/2026T. LindqvistAlderwood Regional Medical CenterBiologics02/18/2026$5,400$3,400NN
KR-101002/17/2026D. MarchettiKingsbridge Orthopedic InstituteExtremities03/03/2026$21,600$13,500NN
KR-101102/24/2026R. OkaforFenmore County Hospital DistrictSpine03/12/2026$35,800$22,300NY
KR-101202/26/2026T. LindqvistMeridian Valley Health SystemSpine04/08/2026$58,100$36,300NN

The workbook

Select any cell. The formula is the file's own.

These are excerpts of the sheets, with the values the file computes. Nothing on a calculation sheet is typed: the rates are looked up from Inputs, the months roll off one date, and every total has a second route to the same number.

spreadsheet-studio-sample-rep-commission-model.xlsx
E20=E18-E19

The liability an invoice-basis book is missing

Earned by case date on the left, booked by invoice date beneath it, then the roll-forward with its independent recompute.

Accrual sheet of the sample workbook, A5:I29. Select a cell to read its formula.
MonthJan-26Feb-26Mar-26Apr-26May-26Jun-26Total
Month key24,31324,31424,31524,31624,31724,318
WHAT THE REPS ACTUALLY EARNED (booked on the case date)
Cases performed66654330
Case revenue$172,600$229,400$194,500$164,200$140,400$126,000$1,027,100
Commission earned$12,227$15,997$15,188$12,841$12,738$12,561$81,552
WHAT AN INVOICE-BASIS BOOK WOULD SHOW INSTEAD
Commission on cases invoiced this month$6,039$10,532$12,386$14,256$14,852$15,548$73,612
Commission on cases still not invoiced at the last month end$7,939
THE GAP
Cumulative commission earned (case basis)$12,227$28,224$43,412$56,253$68,990$81,552
Cumulative commission booked (invoice basis)$6,039$16,571$28,957$43,212$58,064$73,612
Liability the invoice basis is missing$6,188$11,652$14,455$13,041$10,926$7,939
Understated by more than a month of commission?nononoYESnono
ACCRUED COMMISSION LIABILITY — ROLL-FORWARD
Opening liability$28,400$12,227$22,185$26,840$27,296$25,778
Add: commission earned this month$12,227$15,997$15,188$12,841$12,738$12,561
Less: commission paid this month$0($6,039)($10,532)($12,386)($14,256)($14,852)
Less: prior-year commission paid out($28,400)$0$0$0$0$0
Closing liability$12,227$22,185$26,840$27,296$25,778$23,487
Closing liability — recomputed from the case detail$12,227$22,185$26,840$27,296$25,778$23,487
Client inputs Live formulas Flags

In one picture

Same money. Different months.

Both clocks collect the same invoices in the end. Only one of them says which month the cash lands in, and the month is the only part payroll cares about.

Cash collected each month: on each hospital's own DSO, and on one blended DSO
Cash collected each month: on each hospital's own DSO, and on one blended DSO. Each hospital's own clock against One blended DSO, by month. The table below carries the values.$0k$100k$200k$300kJan-26: Each hospital's own clock $0Jan-26: One blended DSO $0Jan-26Feb-26: Each hospital's own clock $38,400Feb-26: One blended DSO $0Feb-26Mar-26: Each hospital's own clock $41,900Mar-26: One blended DSO $0Mar-26Apr-26: Each hospital's own clock $71,100Apr-26: One blended DSO $101,300Apr-26May-26: Each hospital's own clock $132,600May-26: One blended DSO $226,100May-26$132,600$226,100Jun-26: Each hospital's own clock $95,500Jun-26: One blended DSO $164,100Jun-26
Table view
MonthEach hospital's own clockOne blended DSODifference
Jan-26$0$0$0
Feb-26$38,400$0($38,400)
Mar-26$41,900$0($41,900)
Apr-26$71,100$101,300$30,200
May-26$132,600$226,100$93,500
Jun-26$95,500$164,100$68,600

The Checks sheet

Proved able to fail

The last sheet in the file is 11 tie-outs. Each reads OK on the recalculated file — which proves nothing on its own, because a check can be written so it cannot fail. So before this file shipped, a script typed a wrong number over 12 live formula cells, one at a time, and recalculated each copy.

12 of 12corruptions caught by a red check

The negative-control log
baseline: 11/11 checks OKcorrupt Accrual        Closing liability        col 5   -> CAUGHT by C9
corrupt Commission     @L12                     col     -> CAUGHT by C7
corrupt Commission     @F12                     col     -> CAUGHT by C8
corrupt Commission     @H27                     col     -> CAUGHT by C16
corrupt Commission     @H12                     col     -> CAUGHT by C16
corrupt Cash           Collections on the blended rate col 6   -> CAUGHT by C12
corrupt Accrual        Commission earned        col 4   -> CAUGHT by C13,C6,C9
corrupt Collect        @F7                      col     -> CAUGHT by C11
corrupt Cash           @E9                      col     -> CAUGHT by C11
corrupt Accrual        @D19                     col     -> CAUGHT by C13
corrupt Accrual        @E18                     col     -> CAUGHT by C13
corrupt Accrual        @D14                     col     -> CAUGHT by C10,C13
The tie-outs on the Checks sheet and what each one proves
Tie-outResult

Monthly commission earned totals back to the 30 cases

The monthly grid did not drop, duplicate or misfile a case.

OK

Every case's commission re-derived from revenue, rate, accelerator and split

The earned column is rebuilt from its four ingredients in one pass. A number typed over any case's commission — the most common way a commission file goes wrong — shows up here.

OK

Every case carries the plan rate for its product line

Rates re-counted straight off the Inputs table, line by line. A rate edited on the Commission sheet instead of on Inputs is caught.

OK

Liability roll-forward agrees with the case detail, every month

Opening plus earned less paid equals closing — and closing also equals the same number rebuilt from the 30 cases by a different route. One of those alone proves nothing.

OK

The invoice basis eventually captures every case

The invoice-date bucketing is a timing difference and nothing else. If these disagree, the model has lost a case rather than merely booked it late.

OK

Cash collected plus still outstanding equals everything invoiced

Nothing collected twice and nothing lost. The collections grid closes against the case log.

OK

The blended rate collects the same money, just in different months

The blended book closes against the case log too: what it has collected plus what it still expects is every dollar invoiced. The two methods differ only in WHICH month the money lands — which is the whole argument against a blended rate.

OK

The running totals behind the headline step by exactly each month's figure

The two cumulative rows that produce the March liability figure are re-walked month by month: each step must equal that month's earned (or booked) commission. A typed-over running total is caught in the month it was typed.

OK

Every case matched a plan rate and a hospital DSO

A product line or a hospital name typed differently from the Inputs table would look up to nothing and quietly earn zero commission. This counts those.

OK

Credited cases reverse at the clawback rate

A credited case gives the commission back at whatever rate the plan says — and follows the input if that rate is changed, rather than assuming 100%.

OK

The accelerator is on for every case past the threshold, and off for every case before it

Every case is re-tested against the threshold. Catches the classic off-by-one (an accelerator wired to the row above, paying the bonus a case early) and the quieter one: a multiplier typed back to 1 on a case that had earned it.

OK

On your numbers

Have this built on your numbers

Pricing / unit economics is included — like every other build type — on the one plan, at $1,950 a month with a 48 hours for reporting, 2–4 business days for models turnaround. A request like this one is the export above, the rules of the plan in plain language, and the question the model has to answer. The finished file comes back the same shape as this one: Inputs first, Checks last, and a README that explains itself.

How the money moves in medical device distributorships, and the other workbooks this business runs on: Medical device distributors.

Spreadsheet Studio

The same care, on your numbers.

Every workbook is recalculated with a formula engine, its checks are proved able to fail, and a second pass re-derives the headline numbers before it ships.

Not ready? Get a free teardown of a sheet you already rely on.