Receiving a federal grant is a major accomplishment for any nonprofit. It means your organization has earned the trust of a federal agency to carry out important work in your community.
But receiving federal funding is only the beginning.
One of the first responsibilities nonprofit leaders face is determining which expenses can legally be charged to the grant. Under Uniform Guidance, not every cost your organization incurs is reimbursable—even if it supports your mission.
Charging an unallowable expense can delay reimbursement, create audit findings, require repayment of grant funds, and jeopardize future funding opportunities.
At Bay Business Group, we help nonprofits establish accounting systems that make grant compliance easier from day one. From grant budgeting and expenditure tracking to Single Audit preparation, we help organizations build financial processes that support long-term success.
What Are Allowable Costs?
Under Uniform Guidance (2 CFR Part 200), an allowable cost is an expense that can legally be charged to a federal award.
To be allowable, costs generally must be:
- Necessary to carry out the grant
- Reasonable in amount
- Allocable to the specific federal award
- Consistently treated in your accounting records
- Properly documented
Think of these principles as the foundation of every federal grant.
Even if an expense seems appropriate, it may still be disallowed if it isn’t properly documented or doesn’t directly support the grant’s objectives.
Read More: Uniform Guidance Explained
Necessary, Reasonable, and Allocable—What Does That Mean?
These three words appear throughout Uniform Guidance, but they have practical meanings.
Necessary
The expense must directly support the purpose of the grant.
If the grant funds a workforce development program, staff salaries, training materials, and participant supplies may all be necessary expenses.
If the purchase doesn’t help accomplish the grant’s objectives, it likely shouldn’t be charged to the award.
Reasonable
Federal grants expect organizations to spend taxpayer dollars responsibly.
Would another nonprofit facing the same circumstances consider the expense appropriate?
Reasonableness also applies to pricing. For example, purchasing first-class airfare when economy travel would accomplish the same purpose may not meet the reasonableness standard.
Allocable
An expense must benefit the grant being charged.
If a staff member works half their time on a federally funded program and half on another initiative, only the appropriate portion of their salary should generally be allocated to the grant.
Proper allocation requires good accounting—and good documentation.
Your Approved Federal Grant Budget Matters
One of the biggest misconceptions about federal grants is that organizations can move funding freely between expense categories after receiving an award.
In reality, most grants include an approved budget that outlines how funds are expected to be spent.
For example, your grant may include categories such as:
- Salaries
- Fringe benefits
- Supplies
- Equipment
- Travel
- Indirect costs
If the majority of the award is approved for personnel expenses, you generally can’t simply redirect those funds toward travel or equipment without receiving approval from the granting agency.
Organizations frequently need approval before significantly shifting spending between budget categories. Planning a realistic budget from the beginning helps avoid these challenges later.
Read More: How to Build a Federal Grant Budget
Examples of Common Allowable Costs
Depending on the grant agreement, allowable costs often include:
- Employee salaries
- Payroll taxes and fringe benefits
- Program supplies
- Equipment required for the project
- Professional services supporting the grant
- Approved travel
- Indirect costs recovered through a de minimis rate or NICRA
Every expense should clearly support the objectives described in the grant application.
Read More: Understanding Your Nonprofits Indirect Cost Rate & How to Get a NICRA
Examples of Common Unallowable Costs
Not every organizational expense belongs on a federal grant.
Expenses that are commonly unallowable or heavily restricted include:
- Alcohol
- Entertainment
- Most fundraising activities
- Marketing unrelated to the grant
- Personal expenses
- Luxury travel
- Gifts that do not directly support the grant’s objectives
For example, promotional marketing for your nonprofit’s overall brand generally isn’t allowable unless it’s specifically tied to the funded project.
Likewise, if travel is included in your budget, organizations are still expected to follow reasonable travel policies and procurement requirements.
Why Documentation Is Just as Important as the Expense
One of the biggest misconceptions about grant compliance is that if an expense is allowable, reimbursement is guaranteed.
Not necessarily.
Federal auditors also want to see how you documented the expense.
Your nonprofit should maintain:
- Vendor invoices
- Purchase approvals
- Payroll records
- Timekeeping documentation
- Procurement records
- Grant budgets
- Reimbursement support
If documentation is incomplete, even legitimate expenses may become questioned costs during an audit. That’s why compliance starts long before year-end.
How to Strengthen Federal Grant Tracking & Compliance
Procurement Rules Also Affect Allowable Costs
Uniform Guidance doesn’t only regulate what you purchase—it also governs how you purchase it.
For larger expenditures, nonprofits may need to:
- Obtain multiple vendor quotes
- Document why a vendor was selected
- Follow written procurement policies
- Maintain supporting records
Simply choosing a familiar vendor without documenting the selection process may create compliance issues.
Good procurement practices strengthen both financial accountability and public trust.
How Bay Business Group Helps Nonprofits Stay Compliant
Understanding allowable costs is only one part of effective grant management.
The real challenge is building accounting systems that consistently apply those rules throughout the life of the grant.
At Bay Business Group, we specialize in nonprofit accounting and help organizations establish the financial infrastructure needed to manage federal funding with confidence.
Our team provides:
Rather than waiting until an audit uncovers problems, we help nonprofits establish compliant accounting systems from the beginning—making reimbursement requests, grant reporting, and audits significantly less stressful.
A Complete Guide to Effective Grant Accounting
Frequently Asked Questions
What makes a cost allowable under Uniform Guidance?
Generally, costs must be necessary, reasonable, allocable to the grant, consistently treated, and properly documented to be considered allowable under Uniform Guidance.
Can we move money between grant budget categories?
Sometimes—but significant budget revisions often require approval from the granting agency before funds can be reallocated.
What happens if we accidentally charge an unallowable cost?
Depending on the circumstances, the expense may need to be removed from the grant, repaid using unrestricted funds, or identified during a Single Audit or grant review.
Can an outsourced accounting firm help with grant compliance?
Absolutely. An experienced nonprofit accounting partner like Bay Business Group can help establish accounting systems, monitor grant expenditures, prepare reimbursement requests, strengthen internal controls, and reduce compliance risk.
Build Better Grant Accounting From Day One
Federal grants create incredible opportunities—but they also require careful financial stewardship.
Understanding allowable costs is one of the most important steps toward maintaining compliance, maximizing reimbursement, and protecting future funding opportunities.
At Bay Business Group, we help nonprofits build accounting systems that support every stage of the grant lifecycle—from budgeting and expenditure tracking to financial reporting and Single Audit preparation.
If your nonprofit is managing federal grants or preparing to apply for one, schedule a free 30-minute consultation with Bay Business Group. Our nonprofit accounting specialists can help you strengthen compliance, improve financial reporting, and build the systems your organization needs to grow with confidence.