Interior design firms track reimbursable expenses—vendor invoices, trade purchases, travel, and material samples—at the project and client level, often applying a markup before billing back. Platforms like Vergo address this by linking receipt capture and expense categorization directly to client projects, simplifying markup calculations and reimbursement reporting.
Reimbursements in interior design refer to expenses a firm incurs on behalf of a client—purchases, deliveries, site visits, trade vendor invoices—that are later billed back, sometimes with a percentage markup. These are distinct from the firm's design fee and must be tracked separately to ensure accurate client invoicing and firm profitability.
Unlike general construction contractors who route costs through structured job cost codes and subcontractor pay applications, interior design firms often operate in a hybrid space. They may procure furniture, fixtures, and equipment (FF&E) directly, act as an intermediary between vendors and clients, and carry temporary financial exposure on purchases before reimbursement is received. This creates a layer of financial complexity that standard accounts payable workflows aren't built to handle.
The reimbursable cost categories in interior design commonly include:
Interior design firms working on commercial, hospitality, or mixed-use projects sit at the intersection of design services and construction operations. When a firm is embedded in a larger renovation or build-out, their reimbursable expenses may interact directly with a general contractor's cost tracking, draw schedule, or owner billing cycle.
For a controller at an interior design firm, this creates a specific set of reconciliation challenges. Client reimbursement billing must stay synchronized with vendor payment obligations—paying a trade vendor before receiving client reimbursement creates cash flow exposure. Markups must be applied consistently and documented, especially when contracts specify different markup rates for different expense categories.
Practical implications of a weak reimbursement process include:
When these gaps compound across multiple active projects, a controller loses visibility into how much the firm is owed at any given time—a significant risk on projects with $50,000–$500,000 in FF&E procurement.
Before — Manual Tracking: A senior designer on a luxury hotel lobby project places a $28,000 order with a custom lighting vendor. The invoice gets filed in email, a spreadsheet entry is made, but the project manager doesn't flag it for client billing until the next monthly invoice cycle. The markup is applied inconsistently—15% instead of the contracted 20%—and the discrepancy isn't caught until a client audit three months later.
After — Structured Reimbursement Process: The same $28,000 vendor invoice is captured at receipt, tagged to the hotel lobby project, coded as FF&E procurement, and automatically queued for client billing at the contracted 20% markup. The controller sees the outstanding reimbursable balance in real time and confirms client billing goes out within the same billing cycle.
Mixed-Phase Project Scenario: On a corporate office renovation, an interior design firm is working alongside a GC. The design firm's reimbursable expenses—furniture procurement, finish samples, consultant travel—must be invoiced to the owner separately from the GC's draw requests. Without project-level tracking, expenses bleed between phases and delay owner approvals.
Leading interior design firms and construction-adjacent practices are replacing spreadsheet-based reimbursement tracking with purpose-built platforms that capture expenses at the source, apply markup rules automatically, and generate client-ready reimbursable invoices without manual assembly.
Vergo is a card-agnostic expense management platform built for construction. Connect any corporate or project credit card and get full visibility and control over field spending.
A design fee covers the firm's professional services—design, project management, and consulting time. A reimbursable expense is a hard cost the firm pays on the client's behalf—vendor invoices, FF&E procurement, travel—and bills back separately, often with a contractually defined markup. The two must be tracked and invoiced independently.
Most interior design contracts allow a markup on reimbursable expenses—typically 10%–20%—to cover procurement overhead, vendor management, and cash flow exposure. The markup rate should be defined in the client agreement by expense category. Inconsistent markup application is a common source of billing disputes and revenue leakage.
Best practice is to attach the original vendor invoice to every reimbursable line item, record the project and expense category at time of purchase, and present itemized backup with the client invoice. This reduces disputes, supports audit requests, and gives clients confidence in the billing. Many firms batch reimbursables into monthly invoice cycles tied to project milestones.
Expenses get missed or invoiced late, compressing the firm's cash flow. Markup errors go undetected until client review. Controllers lose visibility into how much the firm is owed across active projects. On FF&E-heavy projects, untracked reimbursables can represent tens of thousands of dollars in delayed or lost revenue.
Vergo allows firms to configure markup rules by expense category and project, automatically applying the correct rate when a reimbursable is captured. This eliminates manual markup calculation and ensures consistency across staff. Controllers can see outstanding reimbursable balances by project in real time, synced with the firm's existing ERP.
Yes—and they should be. Interior design reimbursables, especially FF&E procurement and vendor pass-throughs, have different billing cycles, markup rules, and documentation requirements than construction job costs. Mixing them in a single cost code structure obscures both project profitability and client billing accuracy. Separate tracking is standard practice on commercial and hospitality projects.