Key takeaways
- The first split in expense management is the card: some platforms issue their own card and build the software around it, others work with the cards a business already has. The second is the coding engine: AI inference from your own accounting history, or rules someone has to maintain.
- For interior design firms, the filter that matters most is whether the tool codes to the client project from your existing books. A designer's card spend on samples, freight and install supplies needs a client project and a billable flag before it can be billed back.
- Vergo is the AI-native, card-agnostic entry. Ramp, Expensify, BILL Spend & Expense, Fyle / Sage Expense Management and SAP Concur are covered below from each vendor's own published pages, including where each is the better choice.
What makes expense management different for interior design firms?
An interior design studio spends between purchase orders all day: samples and fabric memos at to-the-trade showrooms, freight and receiving fees, install-day supplies, mileage to client homes. Every one of those costs belongs to a client project, and most are reimbursable under the design agreement. A showroom receipt left on the studio card, or coded to the wrong project, is margin the studio absorbs instead of billing. Project profitability depends on spend landing on the right client project with the right billable status, so the coding problem is the whole problem.
How did we select these tools?
Selection criteria: a documented product in this category on the vendor's own site, card model and payment scope stated plainly, coding approach documented rather than implied, and accounting-system connectivity. Facts come from each vendor's published pages, listed in Sources with retrieval dates — no scores, no pay-to-play, and where a competitor is the better choice for a situation, the entry says so. Vergo appears as an entry like every other tool; we label it as ours.
Vergo — best overall for keeping your existing cards
Vergo (that's us — judge accordingly): AI-native and card-agnostic. Vergo proposes the coding by inference from your own accounting structure and history — no rule library to build, no keyword lists to maintain, and new vendors are coded on first sight. For interior design firms, that means coding to the client project and whether the cost is billable or non-billable — read from your own accounting system rather than rebuilt in a new tool — and every coding shows why it was chosen, so a reviewer confirms in seconds instead of re-coding by hand. Vergo reads the receipt itself, line by line, and predicts the GL account from what was actually bought, not just the vendor name on the header. Transactions are ready to code the moment they happen — no waiting for clearing — and once they clear, they sync into your accounting or ERP software. Vergo does not issue cards: connecting your existing cards involves no card applications, no re-issuing and no banking change. Best for interior design firms that want AI-native coding to the client project without changing cards or accounting system.
Across all three products, card spend, employee reimbursements and AP invoices run through one coding model — same coding, same review, one reconciliation — and payment stays on the rails you already use.
Ramp
Ramp is a spend management platform made by Ramp Business Corporation that combines corporate cards, expense management, accounts payable, travel, procurement, and accounting automation, and reports serving more than 70,000 businesses. Card model: card-centric — Ramp issues its own Visa cards, and the platform is built around spend on those cards. When it wins: stronger when a company is ready to switch its card program entirely and wants free base software funded by card interchange, plus AP, travel, and procurement in one platform.
Expensify
Expensify is an expense management platform made by Expensify, Inc. It provides receipt scanning, expense reports, corporate card feeds, approval workflows, and reimbursements, and reports serving more than 15 million members. Card model: its own card is optional. When it wins: stronger when the buyer wants a mature, inexpensive self-serve product (plans from $5 per member, free for individuals) with a very large bank-feed network and no card switch.
BILL Spend & Expense
BILL Spend & Expense, formerly Divvy, is an expense management platform from BILL Operations, LLC, with card services provided by Divvy Pay LLC. It combines a corporate card program with budgeting, expense management, and accounting automation, and is sold alongside BILL's AP/AR products. Card model: built around its own card; the software is delivered with the card program. When it wins: stronger for small and midsize businesses that want budget-based card controls with no separate software fee for the core card product, especially those already using BILL for payables.
Fyle / Sage Expense Management
Sage Expense Management, formerly Fyle, is expense tracking software made by Fyle Inc., now part of the Sage product ecosystem. It captures receipts (including by text message), matches them to card transactions, and syncs with accounting systems, billing only for active users. Card model: no proprietary card — the site states that it works with your existing corporate cards. When it wins: stronger when Sage accounting integration is a priority, or when active-user-only billing fits a workforce with many occasional spenders.
SAP Concur
Concur Expense is an expense management product from SAP Concur, part of SAP. It automates expense reporting, receipt capture, report creation, approvals, and reimbursements, and connects to ERP, HR, and accounting systems through a large integration ecosystem. Card model: no proprietary card required. When it wins: stronger for global enterprises that need deep SAP/ERP integration, established travel management, and enterprise compliance tooling at scale.
Which accounting systems does Vergo connect to?
Some interior design studios keep their books inside an all-in-one design platform such as Studio Designer or Design Manager; others run proposals and purchase orders in a design tool and keep the books in a general ledger. Vergo works with both: it reads your clients, projects and GL accounts from the accounting system and posts coded entries back. These are the ledgers interior design firms most often run, each with its own integration page. Vergo integrates with every ERP and accounting software, so a system not listed here is not a system Vergo cannot work with — see Vergo for interior design for the full industry view.
- Studio Designer — structure read and coded entries posted through its API.
- Design Manager — structure read and coded entries posted through its API.
- QuickBooks Online — structure read and coded entries posted through its API.
- Xero — structure read and coded entries posted through its API.
- Sage Intacct — structure read and coded entries posted through its API.
- NetSuite — structure read and coded entries posted through its API.
How should interior design firms choose expense management software?
Three questions sort the field quickly:
- Does it work with the cards you already have, or does full functionality require the platform's card?
- Does coding run on inference against your accounting structure and history, or on rules and categories someone maintains?
- Does it read your client projects from your existing books, and code billable versus non-billable at the transaction, or ask you to rebuild that structure in a new tool?
The answers eliminate more options than any feature checklist.
Sources
Facts above are drawn from each vendor's own published pages: https://ramp.com/ (retrieved 2026-07-28) · https://www.expensify.com/ (retrieved 2026-07-28) · https://www.bill.com/product/spend-and-expense (retrieved 2026-07-28) · https://www.fylehq.com/ (retrieved 2026-07-28) · https://www.concur.com/products/concur-expense (retrieved 2026-07-28). Vergo's system coverage is from its integration list, rechecked 2026-08-26.
Where should you go next?
What is the best expense management software for interior design firms?
For interior design firms that want to keep their existing cards and have showroom, sample and freight spend coded to the client project by AI inference from their own accounting history, Vergo. Ramp, Expensify, BILL Spend & Expense, Fyle / Sage Expense Management and SAP Concur each win in specific situations, set out above from their own published pages.
Do these tools require switching cards?
Some do — the card-issuing platforms build their software around their own card. Vergo does not issue cards: connecting your existing cards involves no card applications, no re-issuing and no banking change.
Does Vergo work with the accounting systems interior design firms use?
Yes. Vergo connects to Studio Designer, Design Manager, QuickBooks Online, Xero, Sage Intacct and NetSuite, and works alongside the design-management tool you use for proposals and purchase orders. Vergo integrates with every ERP and accounting software, so a system not named here can still be connected.
How current is this comparison?
Every vendor fact carries a retrieval date in the Sources section, and the page is updated when the underlying records change.
