Sales Commission Calculator: Flat vs Tiered vs Accelerator Plans

Sales compensation is where good people leave companies. A confusing plan, a miscalculated commission check, or an unexpected clawback — any of these turn a top performer into a job-seeker fast. The Commission Calculator handles the four most common comp structures (flat rate, tiered, accelerator, draw against commission) and includes an OTE (On-Target Earnings) projector plus a side-by-side plan comparison. Whether you’re a rep checking the math on your last paycheck, a manager designing a new plan, or a finance lead modeling next quarter’s expense, here’s how each structure actually works and which one fits which situation.

Last updated: April 2026

The Four Common Commission Structures

1. Flat Rate (The Simplest)

You earn the same commission percentage on every dollar of revenue, with no thresholds or accelerators. A 10% flat rate on a $50,000 sale = $5,000 commission, every time.

Example: Rep closes $400,000 in deals over a quarter at a 10% flat rate. Commission = $40,000.

Best for: Simple SaaS deals, transactional sales, channel partners, junior reps where simplicity > sophistication, situations where you want maximum predictability for both sides.

Drawback: No incentive to push past quota. A rep who hits $500K earns the same effective rate as a rep who hits $50K.

2. Tiered Commission (Most Common in B2B)

Commission rate increases as the rep crosses revenue thresholds. Different tiers earn different percentages.

Example tiered plan:

• $0–$100K in quarterly revenue: 6% commission
• $100K–$200K: 8% commission
• $200K+: 10% commission

Rep closes $250K in a quarter:

• First $100K × 6% = $6,000
• Next $100K × 8% = $8,000
• Final $50K × 10% = $5,000
• Total commission: $19,000

Best for: B2B sales with meaningful variance in deal size, reps with quotas, compensating for territory difficulty (build steeper tiers for harder territories), motivating closing the second half of the quarter.

The Commission Calculator handles tiered math automatically — punch in your tiers and revenue and it computes the cumulative commission across all bands without manual addition.

3. Accelerator (For Quota-Beating Behavior)

Reps earn a base rate up to quota, then a much higher rate above quota. Designed to specifically reward overachievement.

Example accelerator plan:

• Quota: $200K per quarter
• Base commission rate: 8% on quota
• Accelerated rate: 16% on revenue above quota

Rep closes $280K in a quarter:

• First $200K × 8% = $16,000
• Above-quota $80K × 16% = $12,800
• Total commission: $28,800

Compare that to the same $280K under a tiered plan. Accelerators specifically reward going past quota, often dramatically. The implicit message: “Don’t coast at quota. Hunt for one more deal.”

Best for: Mature sales teams with reliable quota-setting, hunter roles where overachievement is the goal (vs. account managers focused on retention), companies that want to incentivize stretch goals.

Drawback: Easy to abuse on the company side — if quotas are set too high, the accelerator never triggers and the plan demoralizes. If set too low, finance gets surprised by big payouts.

4. Draw Against Commission

Reps receive a guaranteed monthly “draw” (advance payment) that gets deducted from earned commissions. Common for new reps in commission-heavy roles where building a pipeline takes months.

Example draw plan:

• Monthly draw: $4,000 (paid as a guaranteed minimum)
• Commission rate: 10% on revenue closed

Month 1: Rep closes $30K in revenue. Earned commission = $3,000. Draw paid = $4,000. Rep takes home $4,000 but is now “in the hole” for $1,000 against future earnings.

Month 2: Rep closes $80K. Earned commission = $8,000. After paying back the $1,000 draw deficit, rep takes home $7,000.

Best for: New hires in commission-only or commission-heavy roles, situations with long sales cycles where reps need cash flow during ramp, recoverable draws (where unearned draw is owed back if rep leaves) protect company finances.

Drawback: Reps can dig themselves into a deep draw hole that’s hard to climb out of. Most plans have draw forgiveness rules at certain milestones to prevent this.

Hybrid Plans (Most Real Plans Are Hybrids)

In practice, most B2B sales comp plans combine multiple structures:

• Tiered + Accelerator: Three commission tiers up to quota, then an accelerated rate above quota. Captures the “slow start, fast finish” psychology of a quarter.
• Base salary + commission: Most enterprise reps have a 50/50 or 60/40 base/variable split — predictable salary plus commission upside.
• Draw + tiered commission: New rep gets a draw during ramp, then transitions to a fully variable tiered plan after 6–12 months.
• Quota multiplier (like accelerator but in reverse): Below 70% of quota = 50% commission rate. 70–100% = full rate. 100%+ = accelerated. Punishes severe underperformance.

The Commission Calculator’s plan comparison mode lets you input the same revenue against multiple plan structures simultaneously, so you can see exactly how a $250K quarter pays out under different designs.

OTE: The Number That Actually Matters

OTE (On-Target Earnings) is what a rep would earn at exactly 100% of quota attainment. It’s the recruiting headline number (“OTE: $180K”) and the budget-planning number for finance.

OTE = base salary + (quota × commission rate at quota)

For a rep with $90K base, $1.2M annual quota, and 7.5% commission:

• Base: $90,000
• Variable at 100%: $1,200,000 × 7.5% = $90,000
• OTE: $180,000

What OTE doesn’t capture: the spread between top performers (often 150–200% of OTE) and underperformers (often 60–80%). The OTE projector shows you the full earning curve at different attainment levels (60%, 80%, 100%, 120%, 150%) so reps can model the realistic spread, not just the recruiter’s pitch.

Common Commission Mistakes (From Both Sides)

From the Rep Side

• Not modeling worst-case attainment. If you’ll be miserable at 70% attainment, find out before signing. The job offer’s OTE assumes you’ll hit quota; many reps don’t.
• Ignoring clawbacks. If a deal cancels, churns, or doesn’t pay invoice, the commission may be clawed back from future paychecks. Read this clause carefully.
• Misunderstanding what counts. Is commission paid on bookings (signed contract value) or revenue (cash collected)? On annual contract value or monthly recurring? On gross or net of discounts? These differences are huge.

From the Manager/Finance Side

• Setting quotas that look reasonable in a spreadsheet but no one actually hits. If < 60% of reps hit quota, the plan is broken — either expectations or compensation needs to change.
• Caps that demoralize. Capping commission at, say, 200% of OTE incentivizes top reps to sandbag deals to next quarter or just leave for an uncapped competitor.
• Plan complexity. If reps can’t calculate their own commission within 60 seconds, the plan is too complex. Use the calculator as a sanity check — if reps need it for routine math, simplify the plan.

Pair With Pipeline Tracking

Commission math is only useful if the underlying pipeline is real. The Sales Pipeline tracker visualizes deals through stages (lead, qualified, proposal, negotiation, closed) with stage conversion rates and a forecast total. Combined with the Commission Calculator, you can model: “If I close 60% of the deals in negotiation this quarter, what does my paycheck look like?”

For inbound lead prioritization, the Lead Scoring Calculator handles the standard fit + intent + engagement scoring framework so you spend time on the deals most likely to actually close.

Run Your Numbers

Open the Commission Calculator, plug in your plan structure (or the one you’re evaluating), and check the math against your last paycheck or the OTE on a job offer. Whether you’re defending your earned commission to finance, modeling next quarter’s pipeline, or designing a new plan from scratch, the calculator handles the multi-tier accumulation, accelerator math, and draw recovery automatically. Sales comp shouldn’t be a mystery — it’s arithmetic with consequences.