How does the finance function contribute to the business? It protects and steers the company’s money. Finance records and reports results accurately, keeps enough cash on hand, plans and forecasts, helps leaders weigh prices and investments, manages financial risk and compliance, and directs capital to the projects with the best returns. Done well, it turns financial data into better decisions and higher value.
Key takeaways
- Finance contributes in seven ways: control and compliance, cash, planning, decision support, capital allocation, risk management and modernization.
- Its value is measurable: cash conversion cycle, forecast accuracy, days to close, return on capital and cost of finance.
- In Deloitte’s 2026 survey of large-company finance leaders, most say they help shape strategy, yet Gartner finds finance AI spending leans toward productivity over better decisions.
- In the US, the function also carries GAAP, IRS and, for public companies, SOX obligations.
What is the finance function?
The finance function is the set of people, processes and systems that manage a company’s money. Accounting mostly looks backward: what did we earn, owe and spend? Finance uses that record to look forward: what should we do with our money next?
Who does the work. In larger US companies, the controller oversees reporting and day-to-day accounting, the treasurer monitors cash flow and deals with bankers and lenders, and the CFO sets working capital policy, capital structure and major investment decisions. FP&A (financial planning and analysis) handles planning, budgeting and forecasting, and at a small company it may be just one part of the controller’s job. Smaller firms often rely on a bookkeeper plus an outside CPA or fractional CFO.
1. It keeps the books accurate and the business compliant
What finance does. It records transactions under US GAAP, closes the books, files taxes, runs payroll, maintains internal controls and supports audits.
Why it matters. Lenders, investors, regulators and your own managers act on these numbers. For public companies the stakes are personal: Sarbanes-Oxley Section 302 requires the CEO and CFO to certify the completeness and accuracy of quarterly and annual reports and to take responsibility for internal controls. The SEC also requires management to report on internal controls.
How to measure it. Days to close the month, audit adjustments and material weaknesses, and restatements.
2. It manages cash and liquidity
What finance does. It forecasts cash, speeds collections, schedules payments, arranges credit lines and invests idle cash.
Example. Say a company has $12 million in annual revenue, or about $32,900 a day. If finance cuts days sales outstanding (DSO) by 10 days, roughly $330,000 comes out of receivables and into the bank without a single new sale.
Why it matters. “Ran out of capital” appeared in 70% of 431 VC-backed shutdowns since 2023. CB Insights treats that as the final cause rather than the root one, since the deeper causes were product-market fit, timing and unit economics. That is exactly where finance helps: it can’t create demand, but it shows runway and whether the economics work while there’s still time to react.
How to measure it. Cash runway in months, DSO, days payables outstanding (DPO), and the cash conversion cycle (days inventory + DSO − DPO).
3. It plans, budgets and forecasts
What finance does. A budget sets targets and a forecast updates them as reality changes. Forecasting adapts the plan when actual results differ from the budget. Good planning also tests scenarios. Deloitte found finance leaders building stronger scenario-planning capabilities and more agile governance to cope with uncertainty.
Example. A downside scenario with 10% lower sales might show cash dipping below a loan covenant in month five. Leaders get months to cut spending or renegotiate, not days.
How to measure it. Forecast accuracy (variance to actual), planning cycle time, and how often forecasts are refreshed.
4. It supports everyday decisions
What finance does. It partners with sales, marketing, operations and HR on pricing, discounts, hiring, marketing spend and make-versus-buy choices.
Example. A 10% discount on a product with a 40% gross margin cuts margin to 30%. To earn the same gross profit you need about 33% more volume ($40 ÷ $30). Sales may not realize that unless finance runs the math.
Evidence. Deloitte found finance leaders primarily responsible for cost management more often hit savings targets (47% versus 39% for those in supporting roles).
How to measure it. Gross and contribution margin by product and customer, and realized savings versus target.
5. It allocates capital to the best opportunities
What finance does. It compares investments using net present value (NPV), internal rate of return (IRR) and payback, and it decides how to fund them. EY notes finance can fund growth by securing outside financing and by freeing up capital inside the business.
Example. A $100,000 machine saves $30,000 a year for five years. At a 10% discount rate, NPV is about +$13,700, IRR is about 15% and payback is 3.3 years. It clears the bar. A machine with a negative NPV wouldn’t, however attractive the sales pitch.
How to measure it. Return on invested capital, plus a post-investment review comparing projected and actual results.
6. It manages financial risk
What finance does. It monitors credit risk (customers not paying), liquidity, interest-rate and currency exposure, and covenant headroom. It sets credit limits, buys insurance and hedges where sensible. Deloitte reports CFOs entering 2026 focused on efficiency, cash preservation, disciplined investment and operational reliability.
Example. If one customer is 30% of receivables, finance flags the concentration risk and may tighten terms or credit limits.
How to measure it. Customer concentration, bad-debt rate, covenant headroom and hedge coverage.
7. It modernizes how the business runs
What finance does. It automates transactions and builds data and AI tools so leaders get answers faster.
What the data says. 50% of North American CFOs call digital transformation of finance their top 2026 priority, and 87% expect AI to be very or extremely important to finance operations. But results lag. Of the 63% of Deloitte respondents who say they’ve fully deployed AI, only 21% believe it has delivered tangible value. Gartner found that 45% of finance AI investments lean toward productivity and just 20% toward decision quality, even though boards want growth and better decisions. These are large-company surveys, so smaller businesses may see different results.
How to measure it. Share of finance time on analysis versus transactions, and whether AI projects measurably change decisions.
How to measure finance’s contribution
| Area | KPI | What it tells you |
|---|---|---|
| Speed and accuracy | Days to close, audit adjustments | Can leaders trust and act on the numbers? |
| Cash | DSO, DPO, cash conversion cycle, runway | How much cash the business generates and how long it lasts |
| Planning | Forecast variance | How well finance anticipates reality |
| Profitability | Margin by product and customer | Where the business actually makes money |
| Capital | ROIC, NPV of approved projects | Whether investments earn their keep |
| Cost of finance | Finance cost ÷ revenue | What the function costs to run |
For that last row, benchmarks vary by source and size. One roundup of APQC data puts the median near 1% of revenue, with top performers around 0.66%, while a Consero analysis puts companies under $1 billion closer to 1.72%. Treat these as directional.
How the contribution changes with company size
| Stage | Who typically does finance | Biggest contribution |
|---|---|---|
| Startup / small business | Founder, bookkeeper, outside CPA or fractional CFO | Cash visibility and clean books |
| Mid-market | Controller, FP&A analyst, CFO | Forecasting, pricing and profitability analysis |
| Large or public | Full finance team | Compliance, capital allocation, strategic partnering |
Common ways finance fails to contribute
- Scorekeeping only. Reporting last month’s results without recommendations.
- Late numbers. If the close takes weeks, decisions are made without data.
- Annual-ritual budgets that never get updated.
- Working in a silo, disconnected from sales and operations.
The fixes are the seven roles above: faster close, rolling forecasts, embedded finance partners and clear KPIs.
To manage the company’s financial resources: record and report results, keep cash healthy, plan, support decisions, manage risk and allocate capital.
Accounting records and reports what happened. Finance uses that data to plan, fund and advise. In small companies, one person may do both.
Both. It costs money to run, but it creates value by improving decisions and preventing losses. That value is hard to isolate, which is why tracking the KPIs above matters.
It builds budgets, calculates returns on campaigns, analyzes discounts and margins, and identifies supply-chain and inventory savings that free up cash.
By forecasting cash, keeping books clean for lenders and taxes, and showing which products and customers are profitable. Many small firms use a bookkeeper plus an outside CPA or fractional CFO.
US GAAP for financial statements, IRS rules for taxes and payroll, and for public companies SEC reporting and SOX certification and internal-control requirements. Requirements vary by size, so check with a CPA.
Bottom line
The finance function contributes when it does three things well: keeps the numbers trustworthy, keeps the business liquid, and turns data into decisions. To test yours, ask:
- How fast do we close the books?
- How many months of cash do we have?
- How accurate were our last three forecasts?
- Which products and customers make money?
- Do we review whether approved investments delivered?
This article is general information, not financial, tax or legal advice. Survey figures reflect the cited studies’ samples and dates.