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# 2026 SaaS R&D Spend Report: The Median Is 27% of Revenue, Not 35%
- URL: https://www.b2bcentr.com/saas-rd-spend-2026/
- Published: 2026-09-25T06:00:00.000Z
- Updated: 2026-09-27T20:30:08.000Z
- Description: Aleph × Benchmarkit surveyed 342 B2B SaaS and AI-native companies (CY-2025). Median R&D is 27% of revenue (N=192), not last year's 35% bar. YoY: 35% → 27%. 75th pct 40%. Distinct from S&M 35%.
- Author: Alex H
- Tags: Report, Stats, Business, SaaS, Product

Boards still plan product investment off last year's **35%** R&D-of-revenue bar. That was the CY-24 median in the same [Aleph × Benchmarkit cut](https://www.benchmarkit.ai/%5Ffiles/ugd/2a084b%5Ff19d7f96a9e24aba9202e01224d0dbcc.pdf?ref=b2bcentr.com). CY-2025 actuals already moved.

Across **342** B2B SaaS and AI-native companies reporting CY-2025 actuals, the [R&D Expenses as % of Revenue cut](https://www.benchmarkit.ai/%5Ffiles/ugd/2a084b%5Ff19d7f96a9e24aba9202e01224d0dbcc.pdf?ref=b2bcentr.com) (**N=192**) prints a median of **27%**. That is an **8-point** drop from **35%** in CY-24\. The 75th percentile sits at **40%**. The lean floor (bottom quartile) sits at **10%**.

This B2Bcentr report shows which sample produced the 27% median, how R&D differs from full S&M spend, what growth cohorts and ARR scale do to the number, and why a 35% board slide now mis-sets the product plan.

📊

Lead number: Median R&D Expenses as % of Revenue is 27% (Aleph × Benchmarkit 2026, N=192, CY-2025). That is not last year's 35% median, and it is not the 35% S&M spend figure from the same file.

## Key Takeaways

- Median R&D is 27% of revenue (N=192). Boards still quote \~35%.
- YoY: 35% to 27%. An 8-point drop in one year.
- 75th percentile prints 40%; bottom quartile / lean floor is 10%.
- High-growth (>50%) cohort spends 33%; slow-growth (<10%) spends 26%.
- Distinct from S&M: full S&M median is 35% of revenue (N=196).

## Which sample produced the 27%

Primary source: [Benchmarkit 2026 SaaS & AI-Native Metrics](https://www.benchmarkit.ai/2026-saas-ai-native-metrics?ref=b2bcentr.com) (research partnership with Aleph). Overall file: **342** B2B SaaS and AI-native software companies, CY-2025 actuals. The R&D Expenses as % of Revenue cut is **N=192**. Context write-up: [Aleph's 2026 SaaS benchmarks takeaways](https://www.getaleph.com/blog/2026-saas-benchmarks-takeaways?ref=b2bcentr.com). Guide page: [Aleph 2026 SaaS benchmarks](https://www.getaleph.com/guides-and-templates/2026-saas-benchmarks?ref=b2bcentr.com).

Definition used here: Research and Development expenses as a percentage of revenue (product and engineering on the P&L, not Sales & Marketing). At **27%**, the median private company spends a little over a quarter of revenue on R&D. That is not S&M %, not Gross Margin, and not ARR per employee.

| Cut                                        | Number             | Sample                                        |
| ------------------------------------------ | ------------------ | --------------------------------------------- |
| Median R&D % of revenue                    | **27%**            | Aleph × Benchmarkit 2026; N=192; CY-2025      |
| CY-24 median (same trend cut)              | **35%**            | YoY: 8-point decline into CY-25               |
| 75th percentile (CY-25)                    | **40%**            | Earlier-stage or heavy AI product investment  |
| Bottom quartile / lean floor               | **10%**            | Product maturity or AI coding leverage        |
| High-growth (>50%) cohort                  | **33%** median R&D | Highest growth-band R&D in the cut            |
| Slow-growth (<10%) cohort                  | **26%** median R&D | Underinvestment risk cited near 16%           |
| Scale: sub-$5M → >$100M ARR                | **\~32% → \~22%**  | ARR-band cut N=96; leverage at $20M–$50M      |
| Top quartile R&D efficiency (exec summary) | **\~22%**          | Cited as AI-assisted engineering productivity |
| Overall file size                          | **342** companies  | B2B SaaS and AI-native; CY-2025 actuals       |
| S&M (separate post)                        | **35%** of revenue | N=196; distinct from product R&D              |

⚠️

Warning: Do not staff 2026 product budgets off a plan that still assumes \~35% of revenue on R&D as the private median. At 27%, you are already 8 points under last year's bar. Treat 40% (75th percentile) as the heavy-investment end of the private distribution, not as the plan floor. Watch slow-growth books near 16% for underinvestment risk.

## Why the \~35% folklore still shows up in board decks

Operator folklore still treats last year's **35%** R&D median as the planning default. Older packs round that into a clean third-of-revenue product target and keep using it as a floor even after CY-25 compressed.

Benchmarkit's own key insight on this cut is direct: median R&D at **27%** of revenue is consistent with meaningful product investment in B2B SaaS, and it reflects a balance between product commitment and revenue efficiency across the benchmark population. Total-population benchmarks still need care: sample composition is material, and R&D % correlates with growth rate and with company size.

Here's why that matters. If your plan still assumes a 35% floor while the private median is 27%, you will overfund the product line relative to peers or under-credit the efficiency the market already booked in CY-25\. Read this next to [B2Bcentr's S&M spend report](https://www.b2bcentr.com/saas-sm-spend-2026/) (35% of revenue on sales and marketing) so you do not confuse a growth-function line with product R&D.

## R&D is not S&M, and it is not Gross Margin

Full S&M answers how much of revenue the combined sales and marketing function consumes. In [B2Bcentr's S&M spend report](https://www.b2bcentr.com/saas-sm-spend-2026/), Aleph × Benchmarkit's median is **35%** of revenue on S&M (N=196). R&D answers how much of revenue product and engineering consume. Different numerator, different planning use.

Gross Margin answers what share of revenue remains after cost of goods. In [B2Bcentr's Gross Margin report](https://www.b2bcentr.com/saas-gross-margin-2026/), [the same Aleph file](https://www.benchmarkit.ai/%5Ffiles/ugd/2a084b%5Ff19d7f96a9e24aba9202e01224d0dbcc.pdf?ref=b2bcentr.com) prints an **80%** median. You can print a healthy **27%** R&D line while still clearing an **80%** gross margin. Do not swap the two metrics in one sentence.

ARR per employee and Magic Number are siblings on the efficiency side. ARR per employee tracks how much revenue each head produces (see [B2Bcentr's ARR per employee report](https://www.b2bcentr.com/saas-arr-per-employee-2026/)). Magic Number tracks how efficiently last period's S&M converts into this period's ARR growth (see [the Magic Number report](https://www.b2bcentr.com/saas-magic-number-2026/)). Use R&D % of revenue for the product P&L shape. Use S&M % for the growth function. Use Gross Margin for contribution after COGS.

[2026 SaaS S&M Spend Report: The Median Is 35% of Revenue, Not 50%The median B2B SaaS company spends 35% of revenue on full Sales & Marketing (N=196). That is S&M, not product R&D. Read it next to the 27% R&D median so the two lines stay separate.![](https://www.b2bcentr.com/favicon.ico)B2Bcentr](https://www.b2bcentr.com/saas-sm-spend-2026/)

## Growth cohorts, ARR scale, and the efficiency story

[By 2025 growth rate](https://www.benchmarkit.ai/%5Ffiles/ugd/2a084b%5Ff19d7f96a9e24aba9202e01224d0dbcc.pdf?ref=b2bcentr.com), the **\>50%** growth cohort carries the highest median R&D at **33%**. That matches the product thesis: companies that treat product differentiation as the primary growth driver allocate capital accordingly.

The slow-growth band is the risk tell. Companies growing under **10%** print a **26%** median R&D. [Benchmarkit flags](https://www.benchmarkit.ai/%5Ffiles/ugd/2a084b%5Ff19d7f96a9e24aba9202e01224d0dbcc.pdf?ref=b2bcentr.com) companies at just **16%** R&D as at elevated risk of competitive disadvantage through underinvestment, vendor consolidation, or AI-native upstarts that prioritize product above all else.

[By ARR scale](https://www.benchmarkit.ai/%5Ffiles/ugd/2a084b%5Ff19d7f96a9e24aba9202e01224d0dbcc.pdf?ref=b2bcentr.com) (N=96 in the ARR-band cut), R&D as a percentage of revenue declines from about **32%** at sub-$5M to about **22%** above $100M. The sharpest efficiency transition sits in the **$20M–$50M** band (about 22% vs about 32% at $5M–$20M), which Benchmarkit reads as the R&D leverage inflection point alongside GTM efficiency.

YoY, median R&D fell from **35%** in CY-24 to **27%** in CY-25\. Aleph's exec summary pairs that with top-quartile R&D efficiency near **22%**, described as achievable through AI-assisted engineering productivity. The 75th percentile at **40%** still marks the heavy-investment end of the distribution.

## Read it next to Rule of 40, ARR growth, and S&M spend

Median Rule of 40 is **25%**, not the investor **40%** folklore bar ([Rule of 40 report](https://www.b2bcentr.com/saas-rule-of-40-2026/)). A large part of the CY-25 Rule of 40 jump came from cutting investment lines, including S&M and R&D, not only from stronger durability. [Aleph's takeaways](https://www.getaleph.com/blog/2026-saas-benchmarks-takeaways?ref=b2bcentr.com) are blunt on that point: efficiency improved because companies reduced S&M and R&D investments, while median growth fell and GRR weakened.

[Median YoY ARR growth](https://www.getaleph.com/blog/2026-saas-benchmarks-takeaways?ref=b2bcentr.com) is **20%**, not the old **40%** folklore bar ([ARR growth report](https://www.b2bcentr.com/saas-arr-growth-2026/)). A 27% R&D line at 20% growth is a different operating reality than a 35% R&D line at 40% growth. Pair the spend % with the growth bar before you celebrate "efficiency."

[The median company](https://www.benchmarkit.ai/%5Ffiles/ugd/2a084b%5Ff19d7f96a9e24aba9202e01224d0dbcc.pdf?ref=b2bcentr.com) freed roughly **8%** of revenue from R&D in a single year (35% to 27%), plus cuts from S&M and G&A, while losing growth points. That is a one-time efficiency dividend if you bank it. It is a reinvestment budget if you put it into durable product advantage and AI-specific engineering.

On AI specifically, [the same file](https://www.benchmarkit.ai/%5Ffiles/ugd/2a084b%5Ff19d7f96a9e24aba9202e01224d0dbcc.pdf?ref=b2bcentr.com) prints a small directional cut for AI Expenses as % of R&D (N=46): median about **10%** of R&D allocated specifically to AI capabilities, with top quartile at **30%+**. Treat that as early-stage and directional, not as a board floor.

## B2Bcentr's take

💡

B2Bcentr's take: Stop writing 2026 product plans as if 35% of revenue on R&D is still the private median. Use Aleph × Benchmarkit's 27% (N=192) as the baseline, keep full S&M (35%, N=196) on a separate slide, and put R&D % of revenue next to Rule of 40 (25%), 20% median ARR growth, Gross Margin (80%), and ARR per employee. If one slide still says "plan to last year's 35%," the pack is folklore. If slow-growth R&D sits near 16%, treat that as underinvestment risk, not as disciplined lean.

## Who this does not work for

Pre-PMF teams with almost no revenue base cannot manage to a 27% R&D % the same way a scaled ARR book can. Early teams should still prioritize product discovery and technical differentiation, then graduate to R&D % of revenue once the P&L is meaningful.

This number also breaks if you redefine R&D to exclude contractor engineering, platform teams, or AI infra cost, or if you paste a full S&M 35% into a product R&D slide. Stick to R&D Expenses as % of revenue the way Benchmarkit reports it. Match growth cohort and ARR band before you copy a peer median.

## What to do Monday

- Pull trailing-year R&D Expenses as % of revenue and keep S&M on a separate line.
- Put 27% median, 40% 75th percentile, and 10% lean floor on one board slide next to S&M 35%.
- Split R&D % by growth cohort and ARR band. Do not manage a slow-growth book to a >50% cohort's 33%.
- If R&D sits near 16% with sub-10% growth, audit product roadmap and AI-native competitive risk before cutting again.
- Re-check Rule of 40 (25%), 20% ARR growth, Gross Margin (80%), and ARR per employee on the same pack.

---

Next number for the same efficiency pack: how much of revenue full Sales & Marketing consumes when boards still quote 40–50%.

[Open the SaaS S&M Spend report ](https://www.b2bcentr.com/saas-sm-spend-2026/) 

[Read the Rule of 40 report](https://www.b2bcentr.com/saas-rule-of-40-2026/)

## FAQ

#### What is a good SaaS R&D spend as a percent of revenue in 2026?

Aleph × Benchmarkit's 2026 file prints a 27% median R&D Expenses as % of Revenue (N=192). The 75th percentile sits at 40%. The bottom quartile / lean floor sits at 10%. Treat last year's 35% as folklore relative to CY-2025 actuals, not as the current private median.

#### Is 35% of revenue on R&D still a realistic planning assumption?

Treat 35% as last year's median (CY-24), not as the 2025 private median. The same cut shows the median at 27% and an 8-point YoY drop. Heavy-investment books still show up near the 40% 75th percentile.

#### How is R&D different from S&M spend as a percent of revenue?

R&D is product and engineering on the P&L as a percent of revenue (27% median here). Full S&M is sales plus marketing; Aleph × Benchmarkit's median is 35% of revenue on S&M (N=196). Do not paste one number into the other slide.

#### Does growth rate change R&D spend as a percent of revenue?

Yes in this sample. Companies growing above 50% print a 33% median R&D. Slow-growth companies under 10% print 26%. Benchmarkit flags books near 16% R&D as at elevated underinvestment risk.

#### How does R&D % of revenue change with company size?

In the ARR-band cut (N=96), R&D declines from about 32% at sub-$5M ARR to about 22% above $100M. The sharpest leverage transition sits around $20M–$50M.

#### Did R&D spend fall year over year?

Yes in this cut. Median R&D fell from 35% in CY-24 to 27% in CY-25, an 8-point drop in one year. Aleph's exec summary also cites top-quartile R&D efficiency near 22% via AI-assisted engineering productivity.

#### How much of R&D is specifically AI spend?

A small directional cut (N=46) prints a median of about 10% of R&D allocated specifically to AI capabilities, with top quartile at 30%+. Treat it as early-stage, not as a board floor.

#### Where can I read the full Aleph × Benchmarkit sample?

Start with the [Benchmarkit 2026 report hub](https://www.benchmarkit.ai/2026-saas-ai-native-metrics?ref=b2bcentr.com) and Aleph's [takeaways post](https://www.getaleph.com/blog/2026-saas-benchmarks-takeaways?ref=b2bcentr.com). Guide page: [2026 SaaS benchmarks](https://www.getaleph.com/guides-and-templates/2026-saas-benchmarks?ref=b2bcentr.com).

Primary source: [Benchmarkit 2026 SaaS & AI-Native Metrics](https://www.benchmarkit.ai/2026-saas-ai-native-metrics?ref=b2bcentr.com) (Aleph partnership; 342 companies; R&D Expenses as % of Revenue cut N=192; CY-2025). Context: [Aleph takeaways](https://www.getaleph.com/blog/2026-saas-benchmarks-takeaways?ref=b2bcentr.com) and [Aleph guide page](https://www.getaleph.com/guides-and-templates/2026-saas-benchmarks?ref=b2bcentr.com).