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    Franchise opportunities compared

    Firehouse Subs vs Sonic Drive-In

    Reviewed figures from each brand's Franchise Disclosure Document (FDD), side by side. Each figure carries its FDD year and page. This is not a ranking or recommendation, and the two FDDs may cover different years and location groups.

    Firehouse Subs2026 FDDSonic Drive-In2026 FDD

    Initial investment · Item 7

    Firehouse Subs

    $405,350 – $1,577,750

    2026 FDD · Item 7

    Sonic Drive-In

    $1,485,200

    2026 FDD · Item 7 · PDF p. 38

    Initial franchise fee · Item 5

    Firehouse Subs

    $20,000

    2026 FDD · Item 5 · PDF p. 24

    Sonic Drive-In

    Not available

    Royalty · Item 6

    Firehouse Subs

    6%

    2026 FDD · Item 6 · PDF p. 29

    Sonic Drive-In

    1%

    2026 FDD · Item 6 · PDF p. 34

    Before you compare

    • Both sets of figures come from 2026 FDDs.
    • Firehouse Subs discloses more than one business format, so the investment range spans formats; the full report breaks them out.
    • Item 19 figures cover the location groups each FDD names (Firehouse Subs: 11, Sonic Drive-In: 8). Different groups are not directly comparable.

    Financial commitment

    Estimated initial investment (Item 7)

    Firehouse Subs

    $405,350 – $1,577,750
    2026 FDD · Item 7

    Sonic Drive-In

    $1,485,200
    TOTAL ESTIMATED INITIAL INVESTMENT (excluding free- standing real estate costs) (15) — 1485200
    2026 FDD · Item 7 · PDF p. 38
    Standard initial franchise fee (Item 5)

    Firehouse Subs

    $20,000
    2026 FDD · Item 5 · PDF p. 24

    Sonic Drive-In

    Not available
    No single standard fee identified
    Royalty (Item 6)

    Firehouse Subs

    6%
    Royalty rate: 6% of Gross Sales
    2026 FDD · Item 6 · PDF p. 29

    Sonic Drive-In

    1%
    lows: Duration of Effective Royalty Fee Effective Royalty Fee Opening through Year 1 — 1%
    2026 FDD · Item 6 · PDF p. 34
    Brand / advertising fund (Item 6)

    Firehouse Subs

    Not available
    No reviewed brand or advertising fund fee

    Sonic Drive-In

    Not available
    No reviewed brand or advertising fund fee

    System scale & health

    Total outlets (Item 20)

    Firehouse Subs

    Not available
    No reviewed outlet counts

    Sonic Drive-In

    3,412
    Outlets at end of 2025
    2026 FDD · Item 20 · PDF p. 74
    Net outlet change (Item 20)

    Firehouse Subs

    Not available
    Only one year reported

    Sonic Drive-In

    −109
    Calculated: 3,521 at end of 2023 → 3,412 at end of 2025
    Outlet exits (Item 20)

    Firehouse Subs

    Not available
    No complete exit records for a year

    Sonic Drive-In

    Not available
    No complete exit records for a year
    Franchising since (Item 1)

    Firehouse Subs

    1995
    From a verified franchisor listing

    Sonic Drive-In

    Not available
    Not in reviewed records
    Franchisor founded (Item 1)

    Firehouse Subs

    Not available
    Not in reviewed records

    Sonic Drive-In

    Not available
    Not in reviewed records

    Financial performance (Item 19), by location group

    Firehouse Subs
    Franchised (1,033 locations) — other measures
    $154,410
    other Counter Service
    2026 FDD · Item 19 · PDF p. 73
    Franchised (704 locations) — EBITDA and revenue and other measures and costs
    $103,119
    other EBITDA, All
    2026 FDD · Item 19 · PDF p. 76
    Franchised (35 locations) — other measures — 35 franchised Free Standing Restaurants with a Drive Thru continuously operated…
    $1,054,318
    other Free-Standing w/Drive Thru
    2026 FDD · Item 19 · PDF p. 74
    +8 more groups in the full report
    Sonic Drive-In
    Locations counted not stated in the reviewed record — 2nd Quartile
    47 percent
    other 2nd Quartile
    2026 FDD · Item 19 · PDF p. 71
    Locations counted not stated in the reviewed record — All Restaurants
    1,338 restaurants
    other All Restaurants
    2026 FDD · Item 19 · PDF p. 72
    Locations counted not stated in the reviewed record — 1st Quartile
    294 restaurants
    other 1st Quartile
    2026 FDD · Item 19 · PDF p. 71
    +5 more groups in the full report

    Item 19 groups are shown separately and never combined. Revenue or sales figures are not profit. Net outlet change and turnover are Franopolis calculations from the disclosed counts; turnover is a count-based rate, not a measure of owner earnings.

    Firehouse Subs vs Sonic Drive-In: common questions

    Which costs less to open, Firehouse Subs or Sonic Drive-In?
    Firehouse Subs: $405,350 – $1,577,750 (2026 FDD · Item 7); Sonic Drive-In: $1,485,200 (2026 FDD · Item 7 · PDF p. 38). These are each franchisor's Item 7 estimated initial investment. The low end of the disclosed estimate is lower for Firehouse Subs. At least one range spans several business formats. Estimates are not quotes, and the FDD years may differ.
    How do Firehouse Subs and Sonic Drive-In royalties compare?
    Firehouse Subs: 6% (2026 FDD · Item 6 · PDF p. 29); Sonic Drive-In: 1% (2026 FDD · Item 6 · PDF p. 34). Royalties as disclosed in Item 6; other recurring fees are listed separately.
    Do Firehouse Subs and Sonic Drive-In disclose financial performance (Item 19)?
    Firehouse Subs has reviewed Item 19 figures for 11 location groups; Sonic Drive-In has reviewed Item 19 figures for 8 location groups. Different location groups are not directly comparable, and revenue is not profit.

    Answers restate the reviewed figures above. Not a ranking or recommendation.

    How Franopolis reviews FDD figures

    Keep researching

    Full Firehouse Subs report

    Every reviewed fee, Item 19 group, outlet table and territory disclosure

    Full Sonic Drive-In report

    Every reviewed fee, Item 19 group, outlet table and territory disclosure

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