The most common mistake when building the finance function in a startup: founders look for one person who can do everything. Bookkeeping, reporting, forecasting, investor updates, taxes, contracts. That person does not exist. In the DACH market with its tax advisor (Steuerberater) system, GoBD obligations and a clear role hierarchy across bookkeeper, controller, FP&A, head of finance and CFO, the right sequence of hires matters more than the search for the perfect generalist. This page shows which finance role gives the biggest lever in which growth stage, how the functions actually differ, and what each role costs in the DACH market in 2026.
Why the sequence matters more than the roles
Most founders think about finance hiring in the wrong order. They hear from their VC that they need a CFO, so they look for a CFO. They hear from another founder who already has a head of finance, so they look for a head of finance. They see a LinkedIn post about the magic number of a US SaaS startup, so they look for an FP&A analyst.
In practice the sequence is almost always the same: clean bookkeeping first. Then someone who delivers reports and KPIs consistently. Then someone who plans forward. Then someone who defends the strategy in front of investors and the board. The sequence does not follow a career ladder, it follows the growing complexity of finance decisions that have to be made every day.
The most expensive mistake I see regularly: a pre-seed startup hires a full-time CFO at EUR 180,000 because the lead investor suggested it. Six months later the CFO leaves, because at that stage the role is essentially bookkeeping cleanup, reporting hygiene and a first model. A senior controller at EUR 70,000 plus a fractional CFO at two days a month would have delivered the right setup.
The phase model: from tax advisor to full-time CFO
Five phases can be cleanly distinguished in the DACH startup context. Headcount numbers are orientation, not threshold. What matters is the complexity of the finance decisions.
Phase 1 — pre-seed to seed (1 to 10 employees)
Setup: tax advisor (Steuerberater) plus cloud bookkeeping. No internal finance hire. The tax advisor handles ongoing bookkeeping, payroll, annual statements and tax filings. Cloud tools like DATEV Unternehmen Online, lexoffice or sevDesk handle the operational side. The founder or a finance-aware co-founder maintains a KPI overview in a spreadsheet. Nothing more is needed at this stage. Hiring an internal bookkeeper here builds fixed cost before complexity justifies it.
Phase 2 — seed (10 to 30 employees)
First internal hire becomes necessary. Typically: a junior controller or bookkeeper who maintains the bridge to the tax advisor and pulls reports together internally. Alternative: an external bookkeeping service with a dedicated account manager, which often works better for tech startups with clear, repeatable bookings. The tax advisor stays in for annual statements, VAT filings and tax strategy. If a Series A round is planned in the next twelve months, this is also typically when the first fractional CFO engagement starts, focused on KPI architecture, integrated financial model and investor reporting.
Phase 3 — Series A (30 to 60 employees)
The finance team takes shape. Senior controller in-house for month-end close, KPI hygiene, forecast discipline and interfaces with HR, sales and operations. Fractional CFO continues or intensifies for strategic topics, board reporting and Series B preparation. FP&A is added as a specialist function, often combined with the senior controller role if the business model is straightforward. With more complex models a dedicated FP&A analyst joins. Bookkeeping stays external with the tax advisor or moves to a dedicated internal hire. Series A is also the phase where tooling decisions become strategically relevant: whether cloud bookkeeping is still sufficient or an ERP is the next step. A vendor-neutral guide to that decision in Finance Tech Stack by Stage.
Phase 4 — Series B (60 to 150 employees)
The team needs clear leadership of the finance function. Either a head of finance or a full-time CFO comes into play here. Which option fits depends on complexity: international expansion, multiple legal entities, regulatory requirements or an upcoming exit point toward a full-time CFO. Where complexity is more moderate and a fractional CFO continues strategic support, a head of finance can take operational leadership. FP&A is built out as a standalone function with one to two people. Controlling, bookkeeping and FP&A are organised as separate areas under the head of finance.
Phase 5 — Series C and beyond (150+ employees)
Full-time CFO is set. Below: head of finance or VP finance, controller team, FP&A team, treasury (for capital-intensive business models), tax, investor relations. Bookkeeping in most DACH startups remains partially with the tax advisor, because German tax law has a regulatory depth that is rarely covered efficiently in-house. By the time IPO or trade sale preparation starts, the finance organisation is brought to corporate-level maturity.
The roles cleanly separated
The terms get mixed up in practice. Anyone writing job descriptions or interviewing candidates should keep the functions distinct.
Tax advisor vs. internal bookkeeping
The Steuerberater is a German specifc role with no direct counterpart in most other startup ecosystems. They are licensed to provide tax advice, prepare annual statements and sign tax filings. Ongoing bookkeeping can sit with them or move in-house. Internal bookkeeping handles operational entries, accounts payable and receivable, expense reports and payroll preparation. It does not replace the tax advisor, it works alongside. In a startup context the tax advisor remains the most important partner for everything tax-related well into the scaling phase.
Bookkeeper vs. controller
A bookkeeper records transactions, codes documents, checks invoices and maintains the running ledger. The work is rule-based and backward-looking. A controller analyses the numbers, builds reports, maintains forecasts and translates operational data into decision-grade information. The work is analytical and forward-looking. In a startup the junior controller is often the first purely internal finance hire, because bookkeeping stays sensibly outsourced while reporting needs proximity to the operating business.
Controller vs. FP&A
Both functions analyse numbers, the focus differs. Controlling sits closer to month-end close, KPI consistency and the interface with bookkeeping. FP&A (financial planning & analysis) sits closer to the forecast, the model and strategic what-if scenarios. In smaller startups one person covers both functions. From Series B onward, separation pays off: controller owns the actuals, FP&A owns the plan and the model.
FP&A vs. head of finance
FP&A is a specialist function, head of finance is a leadership role. An FP&A lead drives modelling and forecasting work but does not necessarily lead a team. A head of finance leads the full finance team, including controlling, FP&A and possibly bookkeeping, and acts as a sparring partner to the management team. In practice FP&A leads often grow into head of finance roles as the team scales.
Head of finance vs. CFO
This is where the most common confusion sits. A head of finance leads the finance function operationally and typically sits one or two levels below management. A CFO is a member of the management team, owns financial strategy at board level and is the primary contact for investors, banks and external stakeholders. In early-stage startups a head of finance often de facto covers CFO responsibilities without holding the title. The role is formally elevated to CFO, or filled with an external hire, only once the complexity justifies a full-time CFO.
Salaries and costs by role (DACH 2026)
Ranges follow current market data from Stepstone, Haufe, Robert Half and Glassdoor (as of 2026). Gross annual salaries excluding bonus and equity. Bonuses of 10 to 20 percent are common from senior level upward, VSOP grants are standard from head of finance level upward.
| Role | Annual salary (gross) | Typical phase |
|---|---|---|
| Junior bookkeeper (in-house) | EUR 38,000 – 50,000 | Phase 2 |
| Junior controller | EUR 45,000 – 55,000 | Phase 2 to 3 |
| Senior controller | EUR 65,000 – 89,000 | Phase 3 to 4 |
| Senior financial controller | EUR 67,000 – 99,000 | Phase 3 to 4 |
| FP&A analyst | EUR 60,000 – 80,000 | Phase 3 |
| FP&A lead / senior | EUR 75,000 – 110,000 | Phase 4 |
| Head of finance | EUR 95,000 – 175,000 | Phase 4 |
| Full-time CFO (total cost year 1) | EUR 240,000 – 435,000 | Phase 5 |
External alternatives: tax advisors are typically billed under StBVV or as a flat monthly fee, with monthly costs for a startup of twenty to fifty employees ranging between EUR 800 and EUR 3,000. External bookkeeping providers with an account-manager model run between EUR 1,500 and EUR 4,000 per month. A fractional CFO costs between EUR 2,500 and EUR 15,000 per month on retainer, depending on growth stage. Detailed breakdown of fractional CFO compensation in Fractional CFO Cost.
Build in-house or outsource
Three rules of thumb from practice:
- Bookkeeping pays off externally until the document volume overwhelms an external provider's response time. In a DACH context that is usually only at thirty to fifty employees, or earlier if transaction frequency is high, e.g. e-commerce.
- Controlling pays off in-house once weekly or monthly reporting cycles with management and investors exist. External controllers can build bridges, but proximity to the operating business is decisive long-term.
- The CFO function pays off fractional until daily strategic decisions exceed two to four days a month. That is usually only the case from Series B or C onward. Detail in First CFO Hire.
The most common mistake: the one-person-for-everything trap
In initial conversations I regularly hear the same job description: "We are looking for someone who covers bookkeeping, reporting, forecasting, investor updates and tax topics." That person does not exist. Anyone who can do all of that well is at C-level and does not start at EUR 70,000. Anyone who accepts that salary rarely delivers all of it.
The answer is specialisation rather than generalism. Tax advisor or external bookkeeping for ledger work. Senior controller for reporting and KPIs. Fractional CFO or head of finance for strategy and investor relations. FP&A analyst for model maintenance and scenarios, once the business model justifies it. Three or four specialised heads are cheaper in total and deliver better results than an overstretched generalist with a profile that is too broad.
The first finance hire is rarely a CFO. In nine out of ten mandates I work on, it is a senior controller who maintains the operational bridge to the tax advisor and gets reporting consistent. The CFO comes either fractional from Series A preparation or full-time from Series B onward. Reverse the sequence and you pay twice: once for the wrong hire, once for the right one that has to come after.